Author Topic: Group Buy of 2DW233 ultra low noise zener reference  (Read 49727 times)

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Offline VintageNutTopic starter

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Group Buy of 2DW233 ultra low noise zener reference
« on: October 27, 2016, 08:23:02 am »
Zlymex was kind enough to purchase and send 430 pcs of a 2DW233 with what looks like a 4-14 date code from his picture on the 2DW original thread.

This will be a cooperative effort. Everybody who wants to receive some of these please follow these simple
instructions.

1. Everybody who is not in the USA, please add your country beside your name on the list. Just copy the list, paste the list into a new post on this thread, and add your country beside your name.

2. If you are not on the list, and you want to be on the list, copy the list, add your name and country to the bottom of the list and post the amended list.

Housekeeping items

1. You will need to pay for United States Postal Service (USPS) shipping of the parts to your location. I can accept Paypal. If you cannot send payment for the shipping then you will have to find another way to purchase these for yourself. I have shipped stuff to just about every country in the world, so , chances are that USPS can get these parts to you no matter where you are. After I have a representative package to ship, I can post the price of shipping to various countries.

2. If we end up with 150 people on this list then everybody gets 2.8667 pieces. That is just the arithmetic of the situation. Lets see how this list develops and we can discuss it. My personal opinion is that 10 pcs is the minimum that would be interesting. That means we can accept up to 43 people on this list.

3. When it is time to ship, I will send you a PM on this site with an invoice and instructions for sending payment for shipping.

4. I have a day job. It takes me out of town on travel sometimes. There will be some days that I will not be able to post on this thread and will not have access to PMs etc.




Europe:

Theboel
eliocor
pmcouto
Squantor
pelule
branadic
hammy
Nuno_pt
Cerebus
manganin
2N3055
MosherIV
janode
Alex Nikitin
babysitter
plesa



USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise



best regards,

VintageNut
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 
The following users thanked this post: BravoV, edavid, evb149, julian1, 2N3055, chriswebb, SvanGool

Offline BravoV

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #1 on: October 27, 2016, 08:51:21 am »
Europe:

Theboel
eliocor
pmcouto
Squantor
pelule
branadic
hammy
Nuno_pt
Cerebus
manganin
2N3055
MosherIV
janode
Alex Nikitin
babysitter
plesa



USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise


SE Asia:
BravoV (min.20, paypal)



VintageNut , check PM please.
« Last Edit: October 27, 2016, 09:04:33 am by BravoV »
 

Offline 2N3055

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #2 on: October 27, 2016, 08:54:37 am »
I just want to thank so much to Zlymex  for helping us, that was awesome!! Also I thank you for doing this, it means a lot!!
You guys are great !

Here is my info:

Europe:

Theboel
eliocor
pmcouto
Squantor
pelule
branadic
hammy
Nuno_pt
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV
janode
Alex Nikitin
babysitter
plesa



USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise


SE Asia:
BravoV
 

Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #3 on: October 27, 2016, 09:02:39 am »
Thank you for your help, here it goes:

Cheers

Alex

Europe:

Theboel
eliocor
pmcouto
Squantor
pelule
branadic
hammy
Nuno_pt
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa



USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise


SE Asia:
BravoV
 

Offline MosherIV

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #4 on: October 27, 2016, 09:24:50 am »
Thanks to Zlymex and Vintagenut for organising this !
MosherIV

Europe:

Theboel
eliocor
pmcouto
Squantor
pelule
branadic
hammy
Nuno_pt
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa



USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise


SE Asia:
BravoV
 

Offline Nuno_pt

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #5 on: October 27, 2016, 09:39:30 am »
Europe:

Theboel
eliocor
pmcouto
Squantor
pelule
branadic
hammy
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa



USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise


SE Asia:
BravoV
Nuno
CT2IRY
 

Offline riyadh144

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #6 on: October 27, 2016, 09:43:27 am »
Europe:

Theboel
eliocor
pmcouto
Squantor
pelule
branadic
hammy
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa



USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh


SE Asia:
BravoV
 

Offline chuckb

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  • Country: us
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #7 on: October 27, 2016, 10:42:12 am »
Europe:

Theboel
eliocor
pmcouto
Squantor
pelule
branadic
hammy
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa



USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb

SE Asia:
BravoV
 

Offline VK5RC

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #8 on: October 27, 2016, 11:02:37 am »
Thanks

Europe:

Theboel
eliocor
pmcouto
Squantor
pelule
branadic
hammy
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa



USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb

SE Asia:
BravoV

Australia:
VK5RC
Whoah! Watch where that landed we might need it later.
 

Offline BravoV

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #9 on: October 27, 2016, 11:05:18 am »
Europe:

Theboel
eliocor
pmcouto
Squantor
pelule
branadic
hammy
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa



USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC


PS : Update of number of pcs wanted

Offline Squantor

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #10 on: October 27, 2016, 11:14:32 am »
Europe:

Theboel
eliocor
pmcouto
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule
branadic
hammy
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa



USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
 

Offline TiN

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #11 on: October 27, 2016, 12:03:40 pm »
Perhaps I could design a board for it, similar to LTZ one?
But I'm not familiar with the circuit for these.
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Offline pmcouto

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #12 on: October 27, 2016, 12:15:45 pm »
Europe:

Theboel
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule
branadic
hammy
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa



USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #13 on: October 27, 2016, 12:37:22 pm »
Perhaps I could design a board for it, similar to LTZ one?
But I'm not familiar with the circuit for these.

Tin

Your designs are awesome. I would welcome a board that you design. The zener is nominally 6.25VDC. You have to tweak each board for the zero TC of the individual part.

An ovenized board like what is in the DMM7510 would be great. Set the temperature inside the ovenized module for between 30 and 35 C and it should be stable in every home lab situation.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline 2N3055

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #14 on: October 27, 2016, 12:45:30 pm »
From tc diagram inflection point seems to be between 50-60 C..
30-35 seems low,  that is room temperature in sumer .. It gets hot here..
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #15 on: October 27, 2016, 01:13:03 pm »
From tc diagram inflection point seems to be between 50-60 C..
30-35 seems low,  that is room temperature in sumer .. It gets hot here..

I think that the current in the Zener will affect the zero TC temperature. There may be a current that allows a lower zero TC temperature.

In any event, having an oven that can be set by the user will allow different oven temperatures in different parts of the world. Even if the 30 or 35 or 40 C oven is not at zero TC of the zener, if the oven is more stable than the home lab environment, then the reference with the oven is better than no oven at all.

Just my opinion. In my home, my Fluke 731B that I monitor changes about 1 ppm for every 2 degrees F of change in my home temperature. My home temperature can easily vary +/- 5 degrees from week to week. I turn off the HVAC when it is nice outside and open the windows.

I have seen my 731B vary 5ppm over the course of a day where it is hot in the afternoon and cold overnight. Adding an oven to the 731B would make it a much more useful reference standard.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline Nuno_pt

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #16 on: October 27, 2016, 01:26:53 pm »
I agree that we could use some boards like the LTZ from TiN.

The oven would be good for those that don't have HVAC in the workshop or lab, in my case the temps in the workshop vary from mid 20's Cº in fall/winter to mid 30's Cº in summer, still waiting for the BME280 sensor to start tracking the change of temp in the workshop.

Now just need some GPIB cables and GPIB-USB from China.
« Last Edit: October 27, 2016, 01:32:13 pm by Nuno_pt »
Nuno
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Offline hammy

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #17 on: October 27, 2016, 02:11:29 pm »
Europe:

Theboel
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule
branadic
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa

USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
 

Offline bingo600

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #18 on: October 27, 2016, 02:49:46 pm »
Europe:

Theboel
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule
branadic
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)

USA:
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #19 on: October 27, 2016, 03:16:59 pm »
Hello Tin

Attached is a design by Warren S of the VoltNuts email list. I traded some emails with him and he shared the schematic. His posting on the VoltNuts list is pasted below the schematic.



For the Extreme (or cheap) Volt Nut, There is another choice.
Attached is the circuit of a 0.1 PPM, 10 volt transfer standard.
It has ONLY ONE critical part that limits its accuracy and stability.
Everything else can be made to have so little effect as to be insignificant or else can
be trimmed and calibrated out without using a precision voltage source using a method
similar to what the daily auto cal in the HP3458 does. It measures it's own internal 6+V
reference.
Every year or more, best to record the value of the nominal 6.2 volts, to measurement the
ageing rate, by using a known external 10 volt standard.
To do that, an accurate external way is needed to find the exact ratio of the 6.2 volts
to the external 10 volt standard.
This can be done by using a high resolution Linear DMM (aka HP3458A) OR a Kelvin-Varley
divider (aka fluke 720 ) and null meter (aka Fluke 845).
Lets assume if one wants to do 0.1 PPM things, then they have the equipment and skill
needed to measure a 10v to 6v ratio to 0.1 PPM.
After that ratio is known and recorded the units internal 10 volts can then be set to
that same ratio without further need of the external 10V standard.
The main advantage of all this extra trouble is low cost accuracy and stability.
There are no critical or expensive resistor needed or anything else critical, because all
the TC and long term drift are canceled out whenever a manual trim is done using an
external ratio device to check its own 10 V against it's own 6.2 volts.
Nothing very special is needed to build this beside care and time.
To get the best performance, It does take a lot of Nut-time to match and select things.
Total parts cost with a well supplied analog junk box (or EBay) can be under $10.
Any good 6V type reference device could be used.
I'm using a well aged and selected 1n825 because I have a lot of history with them and
they work good without an oven.
I have not done any mailing test on these parts but they can be Zero TCed so that they do
not change 0.1PPM over normal room temperature
and they show no change when powered down for short periods of time and tend to return to
their original value when hit with a heat gun and cold stray, so it makes a good part to
start experimenting with.
ws
« Last Edit: October 27, 2016, 03:21:04 pm by VintageNut »
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 
The following users thanked this post: 2N3055

Offline TiN

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #20 on: October 27, 2016, 03:23:20 pm »
I can't see the schematics though, perhaps you can attach it? I'll need PDF or so to redraw it in my CAD.
Perhaps include me into list too then, 10pcs Taipei, Asia :) I'd make a board , perhaps with room for 10K resistor, and call it 3458A-NutKit :D
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Offline Nuno_pt

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #21 on: October 27, 2016, 03:44:21 pm »
TiN that idea of make everything in one board with this schematic is good, since we can send it as na Traveler Standard and be adjust by some guys with 3458, 720, and 845, also the space for 10k is good.

That schematic would be good also for a new LTZ1k board revision, also with the place for the 10k on board.

Maybe a new chalange this two boards Illya. :-)

TiN in attach is the schematic that VoltageNut posted.
« Last Edit: October 27, 2016, 03:59:36 pm by Nuno_pt »
Nuno
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The following users thanked this post: TiN

Offline gilbenl

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #22 on: October 27, 2016, 04:22:08 pm »
Europe:

Theboel
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule
branadic
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
What doesn't kill you, probably hurts a lot.
 

Offline edavid

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #23 on: October 27, 2016, 05:04:00 pm »
Europe:

Theboel
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule
branadic
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb
edavid

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
 

Offline Gyro

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #24 on: October 27, 2016, 05:32:24 pm »
Thanks to you both!


Europe:

Theboel
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule
branadic
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb
edavid

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
Best Regards, Chris
 

Offline pelule

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #25 on: October 27, 2016, 06:03:47 pm »
Many thanks for taking the lead and all the puzzle work.
I needed some time to find the "instructions" - the thread gets long - but I finally found them.
I assume other may have same issue, so made a copy here also.

Quote
This will be a cooperative effort. Everybody who wants to receive some of these please follow these simple
instructions.

instructions

1. Everybody who is not in the USA, please add your country beside your name on the list. Just copy the list, paste the list into a new post on this thread, and add your country beside your name.

2. If you are not on the list, and you want to be on the list, copy the list, add your name and country to the bottom of the list and post the amended list.

Housekeeping items

1. You will need to pay for United States Postal Service (USPS) shipping of the parts to your location. I can accept Paypal. If you cannot send payment for the shipping then you will have to find another way to purchase these for yourself. I have shipped stuff to just about every country in the world, so , chances are that USPS can get these parts to you no matter where you are. After I have a representative package to ship, I can post the price of shipping to various countries.

2. If we end up with 150 people on this list then everybody gets 2.8667 pieces. That is just the arithmetic of the situation. Lets see how this list develops and we can discuss it. My personal opinion is that 10 pcs is the minimum that would be interesting. That means we can accept up to 43 people on this list.

3. When it is time to ship, I will send you a PM on this site with an invoice and instructions for sending payment for shipping.

4. I have a day job. It takes me out of town on travel sometimes. There will be some days that I will not be able to post on this thread and will not have access to PMs etc.

Europe:

Theboel
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb
edavid

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
You will learn something new every single day
 

Offline branadic

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  • Posts: 2390
  • Country: de
  • Sounds like noise
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #26 on: October 27, 2016, 06:17:33 pm »
Europe:

Theboel
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb
edavid

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
Computers exist to solve problems that we wouldn't have without them. AI exists to answer questions, we wouldn't ask without it.
 

Offline plesa

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  • Country: se
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #27 on: October 27, 2016, 06:43:26 pm »
I can't see the schematics though, perhaps you can attach it? I'll need PDF or so to redraw it in my CAD.
Perhaps include me into list too then, 10pcs Taipei, Asia :) I'd make a board , perhaps with room for 10K resistor, and call it 3458A-NutKit :D

I'm interested as well in this board. Are you going to make separate thread about it?
Resistors array I prefer Vishay NOMCA and pots Bourns 3250W or VPG 1280G.
Resistors nothing fancy, Vishay UXB series or PTF56.

What do you plan to use as 10k resistor? Vishay foil Z203?
Can we reuse some trimming technique to exact 10k?
Or to reduce BOM using cheap Vishay NOMCA in series/parallel configuration with pot.
 

Offline Seekonk

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  • Posts: 1938
  • Country: us
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #28 on: October 27, 2016, 07:13:53 pm »
Europe:

Theboel
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb
edavid
Seekonk

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
 

Offline Nuno_pt

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  • Posts: 435
  • Country: pt
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #29 on: October 27, 2016, 08:03:15 pm »
Resistors array I prefer Vishay NOMCA and pots Bourns 3250W or VPG 1280G.

plesa, the NOMCA series looks good for the 5+3 array of 20k, but I only can find them in multiples of 500.
The Bourns pots are PWW and very good but, 22€ each, the Vishay pots are 16€ each.

Resistors nothing fancy, Vishay UXB series or PTF56.

Here any resistors like UPW-20/50 series, Edwin, UXB, PTF,  etc, should be ok.

What do you plan to use as 10k resistor? Vishay foil Z203?
Can we reuse some trimming technique to exact 10k?
Or to reduce BOM using cheap Vishay NOMCA in series/parallel configuration with pot.

How about using 4x40k in parallel, this way cheap PWW, UXB etc could be use, sinc all the tempco is split between them, we could use 4 wire here.
Nuno
CT2IRY
 

Offline Cerebus

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  • Posts: 10576
  • Country: gb
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #30 on: October 27, 2016, 08:08:51 pm »
Europe:

Theboel
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb
edavid
Seekonk

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 

Offline Theboel

  • Frequent Contributor
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  • Posts: 278
  • Country: id
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #31 on: October 27, 2016, 11:10:46 pm »
Europe:

Theboel - Indonesia Paypal OK 20
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb
edavid
Seekonk

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC

I am from Indonesia, maybe because my Indonesian flag is almost same with poland flag my id get in EU list
 

Offline babysitter

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  • Posts: 893
  • Country: de
  • pushing silicon at work
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #32 on: October 28, 2016, 07:44:02 am »
Europe:

Theboel - Indonesia Paypal OK 20
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb
edavid
Seekonk

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC

I am from Indonesia, maybe because my Indonesian flag is almost same with poland flag my id get in EU list
I'm not a feature, I'm a bug! ARC DG3HDA
 

Offline julian1

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  • Posts: 731
  • Country: au
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #33 on: October 28, 2016, 07:46:00 am »

Europe:

Theboel - Indonesia Paypal OK 20
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb
edavid
Seekonk

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline 2N3055

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  • Posts: 6595
  • Country: hr
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #34 on: October 28, 2016, 07:48:55 am »
Resistors array I prefer Vishay NOMCA and pots Bourns 3250W or VPG 1280G.

plesa, the NOMCA series looks good for the 5+3 array of 20k, but I only can find them in multiples of 500.
The Bourns pots are PWW and very good but, 22€ each, the Vishay pots are 16€ each.

Resistors nothing fancy, Vishay UXB series or PTF56.

Here any resistors like UPW-20/50 series, Edwin, UXB, PTF,  etc, should be ok.

What do you plan to use as 10k resistor? Vishay foil Z203?
Can we reuse some trimming technique to exact 10k?
Or to reduce BOM using cheap Vishay NOMCA in series/parallel configuration with pot.

How about using 4x40k in parallel, this way cheap PWW, UXB etc could be use, sinc all the tempco is split between them, we could use 4 wire here.

There are NOMCA 20k for 5.18 GBP on Farnell in single quantities..
 

Offline Nuno_pt

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  • Country: pt
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #35 on: October 28, 2016, 08:33:36 am »
Depends on the farnell website, in the .es only 10 pieces, on the .pt the 20k doesn't exist.

The first hit was Digikey and they show only 500 min. order.
Nuno
CT2IRY
 

Offline Gyro

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  • Posts: 9480
  • Country: gb
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #36 on: October 28, 2016, 09:19:23 am »


Europe:

Theboel - Indonesia Paypal OK 20
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb
edavid
Seekonk

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
Best Regards, Chris
 

Offline VintageNutTopic starter

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  • Posts: 534
  • Country: 00
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #37 on: October 28, 2016, 10:22:00 am »
For the people in the USA, please note next to your user name that you are OK with Paypal to pay your shipping costs which also confirms that you remain interested in receiving the 2DW parts.

There are a few user names from Europe  who have not responded. These people are
elicor   manganin   janode   plesa
For these people, please note next to your user name that you are OK with paying for your shipping costs with Paypal.
This also confirms that you remain interested in receiving the 2DW zener parts.

The tracking for the package shipped by zlymex is now visible online. I will update when there is news about when the package may arrive.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline chuckb

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  • Posts: 340
  • Country: us
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #38 on: October 28, 2016, 11:28:47 am »
Europe:

Theboel - Indonesia Paypal OK 20
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid
Seekonk

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline klaus11

  • Supporter
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  • Posts: 156
  • Country: 00
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #39 on: October 28, 2016, 01:23:33 pm »
Europe:

Theboel - Indonesia Paypal OK 20
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal OK- 10 Pcs

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid
Seekonk

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
« Last Edit: October 29, 2016, 02:24:36 am by klaus11 »
HP3458A, HP3245a, Keithley 2000, Fluke 87V, Rigol DP832, TEK TDS5052B, HP33120A
 

Offline kutte

  • Contributor
  • Posts: 35
  • Country: de
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #40 on: October 28, 2016, 02:01:50 pm »
Europe:

Theboel - Indonesia Paypal OK 20
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid
Seekonk

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline Galaxyrise

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  • Posts: 531
  • Country: us
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #41 on: October 28, 2016, 05:23:58 pm »
I see a lot of annotations asking for way more than 430/people...    Like does pelule want 0 if he can't get 20?  My original request was for 20, but I'm putting 10+ to indicate whatever a "share" ends up being once it's divvied up. 

Really appreciate zlymex and VintageNut for the time and expense making this possible!

Europe:

Theboel - Indonesia Paypal OK 20
eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid
Seekonk

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
I am but an egg
 

Offline edavid

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  • Posts: 3381
  • Country: us
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #42 on: October 28, 2016, 05:34:14 pm »
Europe:

eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline Seekonk

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  • Posts: 1938
  • Country: us
Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #43 on: October 28, 2016, 05:51:44 pm »

Europe:

eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline orin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #44 on: October 28, 2016, 07:47:05 pm »
Europe:

eliocor
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline eliocor

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #45 on: October 28, 2016, 08:36:18 pm »
Discovered this thread only now...

Europe:

eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline pelule

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #46 on: October 28, 2016, 09:08:41 pm »
@metrologist
Did you read the instruction? (scroll up in this thread)?
@ Flinstone
would be fair, to have placed your name at the end of that list instead of the top. But doesn't matter anyhow.
You will learn something new every single day
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #47 on: October 28, 2016, 09:47:14 pm »
I have added TiN for 10 pcs for board development.


Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development



Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #48 on: October 28, 2016, 10:10:43 pm »
Where we are right now with the list, there are 35 people with a few yet to respond with confirmation.

430 pcs divided by 35 people, truncated to a whole number is 12 pcs per person.

We can accommodate a few more people. I will cut off additions at 43 people so that everybody gets at least 10 pcs. i will announce when the list is frozen. If someone is not interested because the quantity is too low, you can delete yourself from the list.

I have started a spreadsheet so that i can keep organized. Thanks to everyone for managing your own place on the list. Everybody will be treated equal no matter when they joined. We will all get enough parts to make some PCBs and have some new voltage references.

best regards,

VintageNut
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 
The following users thanked this post: edavid, 2N3055

Offline metrologist

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #49 on: October 28, 2016, 10:15:07 pm »
@metrologist
Did you read the instruction? (scroll up in this thread)?

Yes, I did, and I thought I did it right. But then I wasn't sure if I wanted to proceed so I removed my post until I read the other thread. Are we just paying shipping? That's very generous.
 

Offline Fixup

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #50 on: October 28, 2016, 11:00:23 pm »
Thx for arranging this. If possible i'd like to join the fun. (10 Pcs.)  :popcorn:


Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development



Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline pelule

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #51 on: October 28, 2016, 11:06:04 pm »
Quote
Are we just paying shipping? That's very generous.

No - it's even cheaper. You don't need to pay anything and get it delivered for free. :-DD

But let's take it serious:
https://www.eevblog.com/forum/metrology/ultra-low-noise-reference-2dw232-2dw233-2dw23x/?all
In that (org) thread there was made a rough calculation, based on the buy price zlymex could achieve.
Main target, wasn't to get it the cheapest way
- 1st target was to get it anyhow
- 2nd to buy from a trustable source and the right product
You will learn something new every single day
 

Offline TiN

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #52 on: October 28, 2016, 11:12:41 pm »
VintageNut and all,

I'll create separate thread on PCB Module design for this project. So I invite everyone to think clearly what they need most on PCB, so you would be ready once the thread emerge. Don't post on this here, to keep offtopic out.
I'd assume qty about 100 boards. That will get each 2pcs if we get 40 people. CAD files will be open.
YouTube | Metrology IRC Chat room | Let's share T&M documentation? Upload! No upload limits for firmwares, photos, files.
 
The following users thanked this post: 2N3055

Offline MatteoX

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #53 on: October 29, 2016, 02:10:41 am »

Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development



Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline manganin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #54 on: October 29, 2016, 08:40:15 am »

Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development



Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline alanambrose

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #55 on: October 29, 2016, 11:29:16 am »
Err, a bit slow getting onto this :)

Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development



Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
“A foolish consistency is the hobgoblin of little minds"
 

Offline hammy

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #56 on: October 29, 2016, 11:53:00 am »
I'm off. With all these latecomers it is to much hassle and to costly to ship 10 pcs from US to EU.
 Thank you anyway.



Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
« Last Edit: November 11, 2016, 09:59:59 pm by hammy »
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #57 on: October 29, 2016, 02:33:28 pm »
Here is the deal for shipping/postage.

USPS International First Class letter/envelope fee is between USD $2 and USD $3 for up to 3.5 ounces  (100g) for Europe, Australia and Indonesia. There is a stipulation for thickness of envelope not to exceed 1/4" (6mm). When the parts arrive, I will make up some envelopes and take them to my post office to see if the envelopes are acceptable for international first class mailing.

I will have to acquire enough envelopes and see about possibly adding some protective padding.

Preliminary prediction is that I will round up to USD $3.00 which should cover the postage and materials.

The issue to discuss is that there is no tracking for this low cost service. Any service that includes tracking will cost more than the parts are worth for 10-12 pcs, a lot more. Stupid money kind of more.

Feel free to chime in with your thoughts and suggestions. 

working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline Cerebus

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #58 on: October 29, 2016, 02:48:45 pm »
There is a stipulation for thickness of envelope not to exceed 1/4" (6mm).

I have a suspicion that this is going to be the hard constraint. Those cans look kind of TO-5/TO-72 sized and with any (necessary) padding are going to push a package over 1/4" thick. We might end up having to look at some slower small packet rate to keep the postage proportionate. I'm guessing as I know USPS is as arcane as the Royal Mail when it comes to finding the 'sweet spot' in sending something without paying an arm and a leg.
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 

Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #59 on: October 29, 2016, 02:49:28 pm »

The issue to discuss is that there is no tracking for this low cost service. Any service that includes tracking will cost more than the parts are worth for 10-12 pcs, a lot more. Stupid money kind of more.

Feel free to chime in with your thoughts and suggestions.

I'm OK to pay for a tracked packet airmail, as it would be silly to lose the lot after all this effort :) . I am also quite sure from my experience that it would be not possible to use a letter post, as 6mm max thickness is definitely not enough to accommodate the parts in a proper packaging. Please look for the next size up (small packet post?).

Cheers

Alex
 

Offline Seekonk

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #60 on: October 29, 2016, 03:09:20 pm »
I've shipped a lot of small parcels in the US.  6X9 bubble mailing packs are about 28 cents at sams wholesale.  Haven't bought any lately and they may not carry them now.  Other places they cost 50 to 70 cents each.  I used to cut them in half and that would be sufficient for 20.  First class parcel is around $2.70 and that is the same for up to 3 ounces.  Oddball packager size doesn't matter.  3 oz is a lot of parts.  On ebay online shipping this is about 2.30 now and they include tracking for free.  If you register with USPS for online shipping the postage is cheaper than retail and they may provide tracking free to boot.  If you have a printer, the printing of labels saves a lot of work and they will fit on the half package.  Just providing evidence that a package has been shipped to an area code should be sufficient for most people.  Don't forget you will need wide clear packing tape.

EDIT;  I just had to re register at USPS to check US pricing.  3 oz is $2.62 and they no longer offer Click n Ship for this size package.  Might as well just go to the post office. I can't believe it as I used to use it.  I get lots of things with lousy packing and they still seem to arrive just fine.
« Last Edit: October 29, 2016, 03:38:31 pm by Seekonk »
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #61 on: October 29, 2016, 04:06:33 pm »
If you read the other thread carefully, you will see that Zlymex stated that he has difficulty receiving electronic payment where he lives. He want this community of interested hobbyists to make some measurements of noise of these parts and share the measurements.

So, our part in this effort will be to repay Zlymex's kindness with public sharing of what we will do with these parts and to share our measurements.

I am doing some research to see how I will be able to measure the noise of these parts where they are mounted in a circuit and running.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline Cerebus

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #62 on: October 29, 2016, 04:09:13 pm »
I've shipped a lot of small parcels in the US

Yes, but we're talking about shipping from the US to a lot of destinations that are not in the US.
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 

Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #63 on: October 29, 2016, 04:53:41 pm »
By the way, it would be much cheaper to send the lot for all UK participants to a single address in the UK by a tracked airmail packet and then forward it over here using Royal mail. I can do it if required.

Cheers

Alex
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #64 on: October 29, 2016, 04:58:43 pm »
By the way, it would be much cheaper to send the lot for all UK participants to a single address in the UK by a tracked airmail packet and then forward it over here using Royal mail. I can do it if required.

Cheers

Alex

I was just about to suggest the same. How about all of you EU people here discuss where the best place in the EU is for organizing this. From a sheer numbers standpoint, most of the participants are in Germany. It may make sense to send the entire EU lot to Germany.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline edavid

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #65 on: October 29, 2016, 05:01:21 pm »
USPS International First Class letter/envelope fee is between USD $2 and USD $3 for up to 3.5 ounces  (100g) for Europe, Australia and Indonesia. There is a stipulation for thickness of envelope not to exceed 1/4" (6mm). When the parts arrive, I will make up some envelopes and take them to my post office to see if the envelopes are acceptable for international first class mailing.
At my local post office, they have become quite strict about this.  They have a board with a 1/4" slot in it, and the envelope has to pass through.
If you give the envelope to your mail carrier, they are not going to have one of those, so you could probably fudge it.  I don't know if it would be kicked out later and returned.

Quote
The issue to discuss is that there is no tracking for this low cost service. Any service that includes tracking will cost more than the parts are worth for 10-12 pcs, a lot more. Stupid money kind of more.
I think the next step up is $13.50   :(   So, either they have to go overseas in bulk, or people outside the US should just order them from China  :-//

 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #66 on: October 29, 2016, 05:22:33 pm »
USPS International First Class letter/envelope fee is between USD $2 and USD $3 for up to 3.5 ounces  (100g) for Europe, Australia and Indonesia. There is a stipulation for thickness of envelope not to exceed 1/4" (6mm). When the parts arrive, I will make up some envelopes and take them to my post office to see if the envelopes are acceptable for international first class mailing.
At my local post office, they have become quite strict about this.  They have a board with a 1/4" slot in it, and the envelope has to pass through.
If you give the envelope to your mail carrier, they are not going to have one of those, so you could probably fudge it.  I don't know if it would be kicked out later and returned.

Quote
The issue to discuss is that there is no tracking for this low cost service. Any service that includes tracking will cost more than the parts are worth for 10-12 pcs, a lot more. Stupid money kind of more.
I think the next step up is $13.50   :(   So, either they have to go overseas in bulk, or people outside the US should just order them from China  :-//

I will probably forward at least one box to EU. Maybe one to UK and one to Germany.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline 2N3055

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #67 on: October 29, 2016, 06:29:16 pm »
Here in Croatia, you can send letters as a scroll, basically in tube format..  50-100g cca 2€ to EU zone..
They consider it normal letter, just care about weight.. Actually they require tube not to be too small...

I was like  :-// scroll  :wtf:..    I asked do they ship stone tablets too... :-DD
Guy laughed, and said that many legal documents are sent that way to protect them..

So is there such a service USA->EU  ? That would be a solution.

 

Offline edavid

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #68 on: October 29, 2016, 06:35:34 pm »
Here in Croatia, you can send letters as a scroll, basically in tube format..  50-100g cca 2€ to EU zone..
They consider it normal letter, just care about weight.. Actually they require tube not to be too small...

So is there such a service USA->EU  ?

No :(
 

Offline Gyro

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #69 on: October 29, 2016, 07:14:24 pm »
I think the next step up is $13.50   :(   So, either they have to go overseas in bulk, or people outside the US should just order them from China  :-//

I can't speak for the others, but for me personally, this is more about getting hold of identified parts from a batch that Zlymex has already sample tested with good results. I'm grateful to Zlymex for taking on the expense of purchasing and shipping them to the US. If I have to pay $13.50 or more for the privilige of receiving them then I will be well satisfied. I really don't care that they're $0.25 in China, or whatever - this way I can be sure of what I'm getting!
Best Regards, Chris
 
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Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #70 on: October 29, 2016, 07:27:19 pm »
I think the next step up is $13.50   :(   So, either they have to go overseas in bulk, or people outside the US should just order them from China  :-//

I can't speak for the others, but for me personally, this is more about getting hold of identified parts from a batch that Zlymex has already sample tested with good results. I'm grateful to Zlymex for taking on the expense of purchasing and shipping them to the US. If I have to pay $13.50 or more for the privilige of receiving them then I will be well satisfied. I really don't care that they're $0.25 in China, or whatever - this way I can be sure of what I'm getting!


It looks like 5 members is the UK. I can send one box to the UK and the UK group can divide them up.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline VK5RC

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #71 on: October 29, 2016, 10:48:44 pm »
Australia looks not well supported (i.e. bulk send not worthwhile), but if post is only $10-15, I would happy to pay that if it  reduced hassles. :-+
Whoah! Watch where that landed we might need it later.
 

Offline julian1

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #72 on: October 29, 2016, 11:04:53 pm »
Australia looks not well supported (i.e. bulk send not worthwhile), but if post is only $10-15, I would happy to pay that if it  reduced hassles. :-+

Likewise for me.
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #73 on: October 30, 2016, 12:13:19 am »
There is a USPS First Class Pacakage rate. I can package up the parts in a small box and send the parts to one member in each country that wants to do this. You could share the shipping cost among the group in each country. Below are  are the rates. I don't know about tracking but i will find out.

UK  USD $13.50
Germany  USD $13.50
Australia  USD $13.75

If you want, you can purchase the shipping label online, print the label to pdf, and then email the label to me. I will provide the small boxes.

Its an option.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline Theboel

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #74 on: October 30, 2016, 12:46:45 am »
I think the next step up is $13.50   :(   So, either they have to go overseas in bulk, or people outside the US should just order them from China  :-//

I can't speak for the others, but for me personally, this is more about getting hold of identified parts from a batch that Zlymex has already sample tested with good results. I'm grateful to Zlymex for taking on the expense of purchasing and shipping them to the US. If I have to pay $13.50 or more for the privilige of receiving them then I will be well satisfied. I really don't care that they're $0.25 in China, or whatever - this way I can be sure of what I'm getting!

I can not say better, I will pay for the safe shipment and less hassle to Vintage nut.
 

Offline klaus11

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #75 on: October 30, 2016, 04:21:29 am »
By the way, it would be much cheaper to send the lot for all UK participants to a single address in the UK by a tracked airmail packet and then forward it over here using Royal mail. I can do it if required.

Cheers

Alex

I was just about to suggest the same. How about all of you EU people here discuss where the best place in the EU is for organizing this. From a sheer numbers standpoint, most of the participants are in Germany. It may make sense to send the entire EU lot to Germany.

The sum, sorry.
German EU members: 4
Other EU members: 10

Another cuestioin are Aduaners laws in Germany are harsh.
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Offline klaus11

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #76 on: October 30, 2016, 04:27:34 am »
Here is the deal for shipping/postage.

USPS International First Class letter/envelope fee is between USD $2 and USD $3 for up to 3.5 ounces  (100g) for Europe, Australia and Indonesia. There is a stipulation for thickness of envelope not to exceed 1/4" (6mm). When the parts arrive, I will make up some envelopes and take them to my post office to see if the envelopes are acceptable for international first class mailing.

I will have to acquire enough envelopes and see about possibly adding some protective padding.

Preliminary prediction is that I will round up to USD $3.00 which should cover the postage and materials.

The issue to discuss is that there is no tracking for this low cost service. Any service that includes tracking will cost more than the parts are worth for 10-12 pcs, a lot more. Stupid money kind of more.

Feel free to chime in with your thoughts and suggestions.

This was said from the beginning, good for me and the best option. But I will abide by what majority decides, no problem.

1+
« Last Edit: October 30, 2016, 04:56:06 am by klaus11 »
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Offline pelule

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #77 on: October 30, 2016, 10:27:10 am »
I personally don't care, if the shipment cost is $5 or $15.
I also don't care if it arrives a bit delayed (many of my Asian orders need weeks)
As already stated, my target is, to buy them from a know good source and from a known good lot.
It's a bit a pitty to see, in what direction zlymex generous offer tends. The risk: never again or via PM only.

But - minimizing the overall cost is never the less a good engineering task.

So I am open to act as the "German distributor", if the final receivers accept a few days of additional delay and in advance payment.

You will learn something new every single day
 

Offline 2N3055

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #78 on: October 30, 2016, 10:40:12 am »
I agree with pelule, I didn't do this because it would be 2€, but because zilmex had access to good ones..
So even for few € per piece it's a good deal.. Not to mention respecting good people's effort..

So if you gonna group, I'm fine with mine going trough Germany... If not you can send me directly..
That's fine to.  And I insist to pay in advance, that's the least I can do..

And all people that organized the shipment, we owe you for your kindness.. I hope we'll be able to help you in some way ...
 

Offline Nuno_pt

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #79 on: October 30, 2016, 10:47:10 am »
For me it's the same enter via Germany or the UK, since there is where more members are located, and I'll pay in advance.

Nuno
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Offline alanambrose

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #80 on: October 30, 2016, 11:04:30 am »
BTW I'm happy to organise within-UK shipping for UK people. For German guys and customs - would a ship to say France or Belgium work together with some more-local shipping?

Alan
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Offline klaus11

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #81 on: October 30, 2016, 11:25:27 am »
pelule & 2N3055, it was never my intention to reduce the cost to a minimum, so what say you, do not do them in my mouth, just the ease !. Without anyone having to lose 1/2 day in office.
Of course we are grateful to Zlymex and VintageNut you do not forget.


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Offline pelule

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #82 on: October 30, 2016, 01:22:38 pm »
@klaus11
Quote
pelule & 2N3055, it was never my intention to reduce the cost to a minimum, so what say you, do not do them in my mouth, just the ease !. Without anyone having to lose 1/2 day in office.
Of course we are grateful to Zlymex and VintageNut you do not forget.
Hi klaus11, fully noted and accepted - same on my side - I didn't wan't to put anything in anypersons mouth, which haddn't been said.
I just got that "impression, lonely at my laptop here"  :-// - as we say in Germany "Kopfkino", don't know the best english expression.
My intention was only to refokus to my major point :popcorn:
And yes of course also great Hip-Hip-Hurray to VintageNut, thanks for spotting this.
You will learn something new every single day
 

Offline SeanB

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #83 on: October 30, 2016, 01:35:12 pm »
If you are going to send international use small packet rates, not parcel rate, as this is only a small amount over letter rate, but, depending on the originating country, will allow up to 20mm thickness.  Also remember that you have to attach a CN22 customs declaration to each packet, otherwise it will be returned to you or destroyed.

Declare the value correctly, including the postage cost, or at least declare the value as postage cost. May incur a customs charge in some countries, but otherwise they might be held in customs forever.
 

Offline 2N3055

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #84 on: October 30, 2016, 01:57:14 pm »
pelule & 2N3055, it was never my intention to reduce the cost to a minimum, so what say you, do not do them in my mouth, just the ease !. Without anyone having to lose 1/2 day in office.
Of course we are grateful to Zlymex and VintageNut you do not forget.
My friend, I had no intention to put any presure on anybody, quite oposite, I wanted to say that as far as I am concerned those who are kind and are doing us a favor shoul do what is easiest to them..
 

Offline klaus11

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #85 on: October 30, 2016, 02:03:12 pm »
@klaus11
Quote
pelule & 2N3055, it was never my intention to reduce the cost to a minimum, so what say you, do not do them in my mouth, just the ease !. Without anyone having to lose 1/2 day in office.
Of course we are grateful to Zlymex and VintageNut you do not forget.
Hi klaus11, fully noted and accepted - same on my side - I didn't wan't to put anything in anypersons mouth, which haddn't been said.
I just got that "impression, lonely at my laptop here"  :-// - as we say in Germany "Kopfkino", don't know the best english expression.
My intention was only to refokus to my major point :popcorn:
And yes of course also great Hip-Hip-Hurray to VintageNut, thanks for spotting this.
[/img]

HP3458A, HP3245a, Keithley 2000, Fluke 87V, Rigol DP832, TEK TDS5052B, HP33120A
 

Offline Cerebus

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #86 on: October 30, 2016, 02:33:08 pm »
Declare the value correctly, including the postage cost, or at least declare the value as postage cost. May incur a customs charge in some countries, but otherwise they might be held in customs forever.

Just as a general point of information, the CN22 customs form ought only to declare the value of the goods.  It's important for some countries to ensure that you don't make the postage part of the 'value' as it's excluded from their import duty/VAT/whatever calculations. For instance the UK doesn't collect VAT or duty on most goods under the value of £15 excluding postage. If you include the postage you can kick a package over into the band where duty/VAT (and the inevitable handling fee) kick in. Counties that do include postage costs in their calculations just typically use standard figures based on the source, weight, route etc of the package.

If you want to find the detailed, country by country, rules they are here: https://peg.upu.org/EN/Pages/Home.aspx
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #87 on: October 30, 2016, 03:34:03 pm »
The package is still in China. It is progressing. No estimated delivery date to me. My guess is that it will take 2 weeks or maybe even more to get the package to me.

No need for anyone to pay anything now.I will respect the wishes of each participant for delivery.

According to the advertisement by Zlymex's seller, the parts are USD$ 0.24 each. The vale will be declared USD $2.64 for 11 pcs. If the count is different the package will be declared for USD $0.24 each. There should be no customs issues for this small of value.

working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline chriswebb

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #88 on: October 30, 2016, 04:17:34 pm »
Hoping it's not too late to get in on this. 


Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.
chriswebb Paypal OK, 10 or whatever is fine.

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
« Last Edit: October 30, 2016, 04:19:16 pm by chriswebb »
Always learning. The greatest part of life is that there will always be more to learn.
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #89 on: October 30, 2016, 06:16:26 pm »
Yes there is room. I will cut off the list when we are between 40 and 43 participants or when the parts arrive to me whichever happens first.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline Darn_Sparks

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #90 on: October 30, 2016, 07:08:39 pm »
Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.
chriswebb Paypal OK, 10 or whatever is fine.
Darn_Sparks, Paypal OK, 10 pcs

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline pelule

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #91 on: October 30, 2016, 08:44:47 pm »
Quote
If you are going to send international use small packet rates, not parcel rate, as this is only a small amount over letter rate, but, depending on the originating country, will allow up to 20mm thickness.  Also remember that you have to attach a CN22 customs declaration to each packet, otherwise it will be returned to you or destroyed.

Declare the value correctly, including the postage cost, or at least declare the value as postage cost. May incur a customs charge in some countries, but otherwise they might be held in customs forever.
German custom is a bit more "user friendly".  If it not declared correct or complete, they send a letter to the receiptian and one have to go to the custom in person to clearify. It had this plenty times already.
So correct & complete declaration saves time and inconvinience.
You will learn something new every single day
 

Offline plesa

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #92 on: October 30, 2016, 08:45:06 pm »
Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa - Sweden, PayPayl OK, 30pcs
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.
chriswebb Paypal OK, 10 or whatever is fine.
Darn_Sparks, Paypal OK, 10 pcs

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline Andreas

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #93 on: October 30, 2016, 10:18:18 pm »
German custom is a bit more "user friendly".  If it not declared correct or complete, they send a letter to the receiptian and one have to go to the custom in person to clearify. It had this plenty times already.
So correct & complete declaration saves time and inconvinience.

Its also good to have the correct HTSUS or TARIC number on the CN22 declaration.
And sending the letter means that customs treatment is usually 2 weeks.
When you receive the letter then you have to be quick: they only keep the package for about 2 weeks.

with best regards

Andreas
 

Offline janode

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #94 on: October 31, 2016, 06:28:32 am »
I was  :=\ thanks to vintagenut for notifying because I didn't notice the new thread.

janode, Finland, Paypal OK, 20pcs (or 10 if too many)
Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa - Sweden, PayPayl OK, 30pcs
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.
chriswebb Paypal OK, 10 or whatever is fine.
Darn_Sparks, Paypal OK, 10 pcs

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline fanOfeeDIY

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #95 on: October 31, 2016, 08:52:04 am »
This is great!

janode, Finland, Paypal OK, 20pcs (or 10 if too many)
Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa - Sweden, PayPayl OK, 30pcs
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.
chriswebb Paypal OK, 10 or whatever is fine.
Darn_Sparks, Paypal OK, 10 pcs

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development
fanOfeeDIY, Paypal OK, 10pcs

Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline janode

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #96 on: October 31, 2016, 02:20:45 pm »
Oops.. fixed duplicate.  :-[

janode, Finland, Paypal OK, 20pcs (or 10 if too many)
Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa - Sweden, PayPayl OK, 30pcs
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.
chriswebb Paypal OK, 10 or whatever is fine.
Darn_Sparks, Paypal OK, 10 pcs

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development
fanOfeeDIY, Paypal OK, 10pcs

Australia:
VK5RC
julian1, Paypal OK, 10 is fine
 

Offline zlymex

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #97 on: October 31, 2016, 04:53:45 pm »
Tracking information of EMS.
From the English page, it says "Despatch from Sorting Center of Dalian" on 28th Oct. Dalian is the city where I reside.
However in Chinese page, it says "Despatch from Dalian to JFK". This provides two pieces of additional information: The shipment is by air, and there might be no other intermediate city in China to send to.
 
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Offline plesa

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #98 on: October 31, 2016, 04:56:18 pm »
Tracking information of EMS.
From the English page, it says "Despatch from Sorting Center of Dalian" on 28th Oct. Dalian is the city where I reside.
However in Chinese page, it says "Despatch from Dalian to JFK". This provides two pieces of additional information: The shipment is by air, and there might be no other intermediate city in China to send to.

Thanks Lymex for arranging this!
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #99 on: October 31, 2016, 05:11:04 pm »
Tracking information of EMS.
From the English page, it says "Despatch from Sorting Center of Dalian" on 28th Oct. Dalian is the city where I reside.
However in Chinese page, it says "Despatch from Dalian to JFK". This provides two pieces of additional information: The shipment is by air, and there might be no other intermediate city in China to send to.

Thank you zlymex for that update. The English tracking information for EMS and for USPS do not indicate that the shipment is on its way to JFK. Very good to know that JFK is the next stop!
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline jdraughn

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #100 on: November 01, 2016, 11:08:15 am »
I too would also like to get in on this.  Thank you.


janode, Finland, Paypal OK, 20pcs (or 10 if too many)
Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa - Sweden, PayPayl OK, 30pcs
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.
chriswebb Paypal OK, 10 or whatever is fine.
Darn_Sparks, Paypal OK, 10 pcs
jdraughn,  Paypal ok, 10 pcs

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development
fanOfeeDIY, Paypal OK, 10pcs

Australia:
VK5RC
julian1, Paypal OK, 10 is fine
 

Offline SvanGool

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #101 on: November 04, 2016, 12:23:38 pm »
I would like to join. Thanks for the effort!

janode, Finland, Paypal OK, 20pcs (or 10 if too many)
Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa - Sweden, PayPayl OK, 30pcs
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)
SvanGool - The Netherlands, Paypal OK, 20 pieces (less will be fine too)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.
chriswebb Paypal OK, 10 or whatever is fine.
Darn_Sparks, Paypal OK, 10 pcs
jdraughn,  Paypal ok, 10 pcs

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development
fanOfeeDIY, Paypal OK, 10pcs

Australia:
VK5RC
julian1, Paypal OK, 10 is fine
« Last Edit: November 04, 2016, 12:59:30 pm by SvanGool »
# Don't hurry, the past will wait. #
 

Offline technix

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #102 on: November 04, 2016, 05:07:03 pm »
That part number sounded Chinese, and they are made in Shanghai No. 17 Radio Factory - probably in my city. Do you guys want more? I can try to source those for you directly from the factory, hopefully freshly rolled off their production lines.
 
The following users thanked this post: evb149

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #103 on: November 05, 2016, 12:45:29 am »
That part number sounded Chinese, and they are made in Shanghai No. 17 Radio Factory - probably in my city. Do you guys want more? I can try to source those for you directly from the factory, hopefully freshly rolled off their production lines.

That is a kind offer. Do you have a noise meter that can measure noise below 1uV RMS?
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline ivaylo

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #104 on: November 05, 2016, 05:44:17 am »
I would like to join. Thanks for the effort!

janode, Finland, Paypal OK, 20pcs (or 10 if too many)
Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa - Sweden, PayPayl OK, 30pcs
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)
SvanGool - The Netherlands, Paypal OK, 20 pieces (less will be fine too)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.
chriswebb Paypal OK, 10 or whatever is fine.
Darn_Sparks, Paypal OK, 10 pcs
jdraughn,  Paypal ok, 10 pcs
ivaylo, paypal ok, 10 pcs

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development
fanOfeeDIY, Paypal OK, 10pcs

Australia:
VK5RC
julian1, Paypal OK, 10 is fine

 

Offline technix

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #105 on: November 05, 2016, 07:47:40 am »
That part number sounded Chinese, and they are made in Shanghai No. 17 Radio Factory - probably in my city. Do you guys want more? I can try to source those for you directly from the factory, hopefully freshly rolled off their production lines.

That is a kind offer. Do you have a noise meter that can measure noise below 1uV RMS?

Sadly no. I have only my oscilloscope which don't have that good a percision.
 

Offline bertik

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #106 on: November 05, 2016, 09:50:12 am »
janode, Finland, Paypal OK, 20pcs (or 10 if too many)
Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa - Sweden, PayPayl OK, 30pcs
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)
SvanGool - The Netherlands, Paypal OK, 20 pieces (less will be fine too)
bertik,france, Paypal OK, 10 pieces or less, as it fits  (* edit *)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.
chriswebb Paypal OK, 10 or whatever is fine.
Darn_Sparks, Paypal OK, 10 pcs
jdraughn,  Paypal ok, 10 pcs
ivaylo, paypal ok, 10 pcs


Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development
fanOfeeDIY, Paypal OK, 10pcs

Australia:
VK5RC
julian1, Paypal OK, 10 is fine
« Last Edit: November 05, 2016, 11:21:01 am by bertik »
 

Offline technix

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #107 on: November 05, 2016, 11:19:58 am »
Hi Technix,

Thank you for the offer to consider the arrangement.  I probably am interested in getting more parts if it can be easily arranged and perhaps many others here might also have a similar interest.

That part number sounded Chinese, and they are made in Shanghai No. 17 Radio Factory - probably in my city. Do you guys want more? I can try to source those for you directly from the factory, hopefully freshly rolled off their production lines.

I am going to try to get a quote from them this Monday and maybe order a few samples for myself to experiment with (although maybe I should figure out how to use LM399 first?) They will probably have a minimum order quantity (10 if lucky, 500 if not) so we may have to combine orders.

If you think it is necessary I can set up a testing rig so I can pre-select them before sending out to you guys. However my testing rig would be limited to a simple constant-current sink and a UT61D multimeter.
 
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Offline bertik

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #108 on: November 05, 2016, 11:22:43 am »
Sorry if I have misses something obvious, but upon fast reading I couldn't figure out:

What is the difference between the various 2DW233, 2DW234, 2DW235 ?

Thanks,
BK
 

Offline zlymex

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #109 on: November 05, 2016, 03:04:57 pm »
Sorry if I have misses something obvious, but upon fast reading I couldn't figure out:

What is the difference between the various 2DW233, 2DW234, 2DW235 ?

Thanks,
BK
Theoretically the difference is the zero TC current. Practically,  NO difference.
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #110 on: November 05, 2016, 04:59:50 pm »
The package has arrive in NY USA. There is a good chance that I will have the package this week. If not, then next week.
« Last Edit: November 06, 2016, 11:00:50 am by VintageNut »
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 
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Offline Assafl

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #111 on: November 05, 2016, 05:22:59 pm »

I have added TiN for 10 pcs for board development.


Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
hammy - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
janode
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.

Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development
Assafl- Israel. PayPal 10 pieces.



Australia:
VK5RC
julian1, Paypal OK, 10 is fine.
 

Offline BravoV

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #112 on: November 05, 2016, 05:27:06 pm »
Assafl -> You should copy from the last list and then add your name.

Offline Galaxyrise

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #113 on: November 05, 2016, 09:19:33 pm »
I don't think Assafl made the 43 cutoff either.  Bertik's post listed 43 people, so Assafl would have to go on a "someone didn't reply to their PM" standby list.
I am but an egg
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #114 on: November 05, 2016, 10:59:35 pm »
When it is time to start collecting shipping fees, which is not yet, I will start with the first people who signed up and go in order of the people who updated this thread. It will be a very simple first-in first-out system.

I will post here when the individual packages are sealed up for shipping. You will each receive a private messages where you can tell me how you want the parts to ship. Via private message, I will tell you what information I need and how to make payment etc etc.





working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline technix

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #115 on: November 06, 2016, 10:24:53 am »
Thank you Technix.
Good luck with your attempt to contact them and get samples / purchase options that are suitable.
When you ask for a quote of minimum order quantity it might be good to ask what their pricing quotation is for their different standard quantities.  Sometimes you may get a significantly different price for 10 pieces than 100 or 1000.
My own temptation is to buy in the 100-250 pieces range and I think a few others here also indicated such interest for the previous order, so it may not be impossible that people could wish to combine orders to achieve quanties 500+.

zlymex said he bought and received 50 pieces in each bag so maybe that is a standard quantity for the factory unless his reseller packaged / repackaged the devices in some other way.
https://www.eevblog.com/forum/metrology/ultra-low-noise-reference-2dw232-2dw233-2dw23x/msg1056003/#msg1056003


EDIT: As for the LM399, yes, I saw your thread about having some nice collection of parts to build a meter or voltage reference, good luck with all that.  I hope to do similarly with references / ADCs etc. some time.  I think having a LM399 or other reference is a good addition to experiementing with these since you can then compare the different types against eacy other.  I could see the possibility of using different types voltage references within a single system according to the attributre of each, the voltage, the stability, the power consumption, etc.  And certainly for experimentation I think many here will be comparing these 2DWxxx references against LM399, LTZ1000, and other references to see what the performance differences are over time and humidity and temperature and part to part variation.  But if you only wish or need to experiement with one reference for the time then there's nothing wrong with the LM399, I'd like to get some of those as well soon to compare with others and use each for their optimum possible purposes.
   
Hi Technix,

Thank you for the offer to consider the arrangement.  I probably am interested in getting more parts if it can be easily arranged and perhaps many others here might also have a similar interest.

That part number sounded Chinese, and they are made in Shanghai No. 17 Radio Factory - probably in my city. Do you guys want more? I can try to source those for you directly from the factory, hopefully freshly rolled off their production lines.

I am going to try to get a quote from them this Monday and maybe order a few samples for myself to experiment with (although maybe I should figure out how to use LM399 first?) They will probably have a minimum order quantity (10 if lucky, 500 if not) so we may have to combine orders.

If you think it is necessary I can set up a testing rig so I can pre-select them before sending out to you guys. However my testing rig would be limited to a simple constant-current sink and a UT61D multimeter.

I am going to ask them for their minimum order amount and bulk unit. I will probably have to round the aggregated order up to the next bulk unit size and swallow the differences and that will affect the final price.
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #116 on: November 08, 2016, 08:22:42 pm »
The parts have arrived safely in the USA at my home/office/lab. Thank you Zlymex!!!

The rough count of parts is 424. I did not count every part. I weighed the bags and sorted by weight and counted one full bag and counted the smaller low weight bag.

I will start to send private messages with the first people who asked to be on the list in the other thread.

Be ready to reply with your name, address, country, phone number.
From that I will reply with your shipping options and we will go from there.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 
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Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #117 on: November 09, 2016, 12:18:34 am »
Private messages went out to first 18 people on the original list at the beginning of this thread. Everybody be patient. This should go quickly.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #118 on: November 09, 2016, 12:17:43 pm »
I sent a PM to the below listed people. I have not received any replies. Please let me know if you did not receive the PM.

janode, Finland, Paypal OK, 20pcs (or 10 if too many)   1
eliocor - Italy, Paypal OK, 30   1
pmcouto - Portugal, Paypal OK, 30   1
Squantor - The Netherlands, Paypal OK, 30 pieces if possible   1
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)   1
branadic - Germany, Paypal OK, 30 pieces   1
Nuno_pt - Portugal, Paypal OK, 30   1
Cerebus - England, Paypal UK, 20 pieces   1
manganin - Finland Paypal 30   1
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)   1
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)   1
Alex Nikitin - United Kingdom, PayPal OK, 30   1
babysitter - Germany, Paypal OK, 1
plesa - Sweden, PayPayl OK, 30pcs   1
   
USA:   

evb149   1
MatteoX - Paypal OK, idealy 30 pcs   1
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)   1
VintageNut   1
Galaxyrise   Paypal ok, 10+   1
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #119 on: November 09, 2016, 12:21:38 pm »
I sent a PM to the below listed people. I have not received any replies. Please let me know if you did not receive the PM.

I did not receive a PM from you.

Cheers

Alex
 

Offline babysitter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #120 on: November 09, 2016, 12:41:27 pm »
Me neither.
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Offline rsjsouza

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #121 on: November 09, 2016, 12:55:10 pm »
janode, Finland, Paypal OK, 20pcs (or 10 if too many)
Flinstone - Belgium, Paypal OK, 30
eliocor - Italy, Paypal OK, 30
pmcouto - Portugal, Paypal OK, 30
Squantor - The Netherlands, Paypal OK, 30 pieces if possible
pelule - Germany, Paypal OK, 30 pcs (I would take any qty from 20 to 50)
branadic - Germany, Paypal OK, 30 pieces
Nuno_pt - Portugal, Paypal OK, 30
Cerebus - England, Paypal UK, 20 pieces
manganin - Finland Paypal 30
2N3055 - Croatia -Paypal - 20 Pcs  (if possible, otherwise 10 will do)
MosherIV - United Kindom, 3 (but if we doing 10 min - OK with 10)
Alex Nikitin - United Kingdom, PayPal OK, 30
babysitter - Germany, Paypal OK, 30 pcs but willing to share, down tov 20 for me. Remote neighbour of pelule.
plesa - Sweden, PayPayl OK, 30pcs
bingo600 - Denmark -Paypal OK - 20 Pcs  (if possible, otherwise 10 will do)
Gyro - United Kingdom - Paypal Ok - 10 Pcs
klaus11- Spain- Paypal- 10 Pcs
kutte - Germany, PayPal OK, 20
Fixup - Finland, Paypal, 10 Pcs
alanambrose - UK, Paypal fine, 30 pcs (I would take any qty from 20 to 50)
SvanGool - The Netherlands, Paypal OK, 20 pieces (less will be fine too)
bertik,france, Paypal OK, 10 pieces or less, as it fits  (* edit *)

USA:
gilbenl- Paypal OK, 20 pcs
evb149
MatteoX - Paypal OK, idealy 30 pcs
orin - Paypal OK, 20 pcs (10 OK if oversubscribed)
VintageNut
Galaxyrise   Paypal ok, 10+
Riyadh
chuckb, Paypal OK, 10-20 would be great
edavid, PayPal OK
Seekonk Paypal OK, 10 is fine. Will take any odd lot p to 20.
chriswebb Paypal OK, 10 or whatever is fine.
Darn_Sparks, Paypal OK, 10 pcs
jdraughn,  Paypal ok, 10 pcs
ivaylo, paypal ok, 10 pcs
rsjsouza, paypal ok, 10 pcs


Asia:
BravoV , paypal, qty : 20 pcs ( or 30 if possible)
Theboel - Indonesia Paypal OK 20
TiN     10 pcs for board development
fanOfeeDIY, Paypal OK, 10pcs

Australia:
VK5RC
julian1, Paypal OK, 10 is fine

I know there are 43 on the list (I am the 44th), but please let me know if someone drops off the list.

Thank you!
Vbe - vídeo blog eletrônico http://videos.vbeletronico.com

Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 

Offline MosherIV

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #122 on: November 09, 2016, 01:12:35 pm »
Quote
I sent a PM to the below listed people. I have not received any replies. Please let me know if you did not receive the PM.
I did not receive a PM from you.
 

Offline Theboel

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #123 on: November 09, 2016, 01:22:44 pm »
I do not receive any pm.
I move my name from europe to asia latel |O
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #124 on: November 09, 2016, 01:29:08 pm »
I sent a mass PM to 18 people. Obviously the site did not let that happen. Now I will try sending individual PMs.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 
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Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #125 on: November 09, 2016, 01:36:02 pm »
I am trying to send PMs individually. It appears that I cannot send more than two PMs in one minute.  This will slow down progress.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline BravoV

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #126 on: November 09, 2016, 01:38:06 pm »
Private messages went out to first 18 people on the original list at the beginning of this thread. Everybody be patient. This should go quickly.

VintageNut, just asking, the 18, are those sequential base on the request as 1st come 1st serve ?

Cause if you look from the requests, I'm the one who responded 1st (2nd post after your OP) while I'm not in your PM list. Mind clarify this ?
« Last Edit: November 09, 2016, 01:39:40 pm by BravoV »
 

Offline Nuno_pt

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #127 on: November 09, 2016, 02:06:55 pm »
Nothing here either.
Nuno
CT2IRY
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #128 on: November 09, 2016, 02:49:29 pm »
The PMs are going out slowly and I am slowly receiving responses.

The cut off will possibly be 42 participants due to the quantity of parts received.

If you are on the list of the first 42 participants, you can speed up the process by sending me a PM with the information in the below which is what I am sending out via private message

-----------------------------------------------------------------------------------------

Hello from VintageNut in the USA

This private message is for the group buy of the 2DW232 reference Zener diodes that Zlymex purchased and tested for low noise.

Please send to me the following

1. Full Name
2. Shipping address including country
3. Phone Number

If your country requires special documents for customs, it is your respnosibility to acquire these documents. You must fill out these documents and email the documents to me.

The lowest cost shipping is USPS first class letter. There is no tracking with USPS first class letter.

More cost but with tracking will be USPS Priority.

Please let me know if you want to use USPS first class letter or USPS Priority.

I will reply with the cost for shipping the parts and instructions for payment.

best regards,

VintageNut

working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline MosherIV

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #129 on: November 09, 2016, 03:59:10 pm »
Hi VinatgeNut

Are you going to send to a single person in Germany and UK ?
There are 4 in Germany and 5 in the UK

I am OK with sending out to everyone, just thought it might be easier for you.
I think Alex Nikitin offered to sort out the UK distribution

 

Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #130 on: November 09, 2016, 04:13:35 pm »
Hi VinatgeNut

Are you going to send to a single person in Germany and UK ?
There are 4 in Germany and 5 in the UK

I am OK with sending out to everyone, just thought it might be easier for you.
I think Alex Nikitin offered to sort out the UK distribution

Yes, I would post to the UK members First Class, no problem.

Cheers

Alex
 
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Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #131 on: November 09, 2016, 06:17:45 pm »
If groups in a country want to elect a person to receive all the parts for the group you need to decide that among yourselves and let me know.

You may encounter a problem with customs as the value of the parts is USD$ 0.24 each. A batch of 50 parts may trigger customs fees whereas 10 pieces may not trigger a customs fee.

It is up to you people to talk among yourselves and decide.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline 2N3055

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #132 on: November 09, 2016, 08:01:04 pm »
I checked,

In Croatia cutoff  for no tax and customs is 22 euro.. 
shipping from here to Eurozone is 2-3 euro...

I could easily receive for me and central Europe ( my neighbours in Germany and Italy, that is 5-6 people) so that is half the list..

Someone would have to take care of other half..

Could everybody check so we can see if we can organize group shipment...
If you agree, than we can confirm with VintageNut..

Please let me know.

Best regards,

Siniša
 

Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #133 on: November 09, 2016, 09:16:29 pm »
The threshold for the import VAT in the UK is £15 for sold goods (UK Pounds, so about $18) and £34 ($42) for a gift (which I suppose it is for these zeners). In either case $12 declared on the package is not a problem. If other members from the UK are OK with me re-posting their lots here, please let VintageNut and me know (and PM me your addresses). In any case I'll pay for a tracked delivery from the US.

Cheers

Alex
 

Offline Cerebus

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #134 on: November 09, 2016, 09:27:51 pm »
The threshold for the import VAT in the UK is £15 for sold goods (UK Pounds, so about $18) and £34 ($42) for a gift (which I suppose it is for these zeners). In either case $12 declared on the package is not a problem. If other members from the UK are OK with me re-posting their lots here, please let VintageNut and me know (and PM me your addresses). In any case I'll pay for a tracked delivery from the US.

Cheers

Alex

I suspect that it makes more sense for the UK to do the US->UK postage through one member (I say suspect because I haven't run the numbers). I'm happy to go this way.
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 

Offline Gyro

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #135 on: November 09, 2016, 09:46:46 pm »
Fine by me, thanks. PM sent.  :)
Best Regards, Chris
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #136 on: November 10, 2016, 12:24:49 am »
I need exact details if a group wants me to send to one person in the group.

Please talk among yourselves, get organized and then tell me exactly how many people are in the group and who in the group is going to receive the parts.

Its ok to work out the details here in this thread.

 As of now, I have exactly zero details about any group distribution.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline babysitter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #137 on: November 10, 2016, 05:37:24 am »
@germany: Soll ich die Deutschland-Teillieferung annehmen? Würde mir an Arbeitsplatz senden lassen, da ist Zoll schon nicht mehr so fies und gemein, für Beamte die meinen CE-Zeichen sehen zu wollen kommt ein Ausdruck einer ZVEI-Stellungnahme mit

http://www.zvei.org/Publikationen/Position-CE-Bauelemente-2013.pdf

und für Bedenken wegen mangelnde RoHS-Konformität - ist ein Medizintechnikunternehmen und in dem Bereich gibt es Ausnahmen.

Nach https://www.zoll.de/SharedDocs/Boxen/DE/Hintergrund/0020_wertgrenzen_zollrecht.html;jsessionid=4C2AAA2412202EE81981FF25BC8D50B1.live0501?nn=39564 dürften wir glimpflich wegkommen, wer kennt sich genauer aus?

@non-germany: Just discussing group shipment.
« Last Edit: November 10, 2016, 05:46:00 am by babysitter »
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Offline 2N3055

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #138 on: November 10, 2016, 07:00:51 am »
@germany: Soll ich die Deutschland-Teillieferung annehmen? Würde mir an Arbeitsplatz senden lassen, da ist Zoll schon nicht mehr so fies und gemein, für Beamte die meinen CE-Zeichen sehen zu wollen kommt ein Ausdruck einer ZVEI-Stellungnahme mit

http://www.zvei.org/Publikationen/Position-CE-Bauelemente-2013.pdf

und für Bedenken wegen mangelnde RoHS-Konformität - ist ein Medizintechnikunternehmen und in dem Bereich gibt es Ausnahmen.

Nach https://www.zoll.de/SharedDocs/Boxen/DE/Hintergrund/0020_wertgrenzen_zollrecht.html;jsessionid=4C2AAA2412202EE81981FF25BC8D50B1.live0501?nn=39564 dürften wir glimpflich wegkommen, wer kennt sich genauer aus?

@non-germany: Just discussing group shipment.

That is why I offered what I offered... Our customs are not that  complicated... And if I send it it you, it is like it came from Frankfurt... EU zone, no customs...

 

Offline MosherIV

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #139 on: November 10, 2016, 07:41:11 am »
Hi

I am ok for group delivery to UK.

I think that is all of us, that is Cerberus, Alex Nikitin, Gyro and myself.

Alex Nikitin has agreed to recieve and distribute in the UK.

Alex, have you sent your details to Vintage Nut?

Thanks Alex Nikitin and Vintage Nut

MosherIV
 

Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #140 on: November 10, 2016, 09:11:11 am »
Hi

I am ok for group delivery to UK.

I think that is all of us, that is Cerberus, Alex Nikitin, Gyro and myself.

Alex Nikitin has agreed to recieve and distribute in the UK.

Alex, have you sent your details to Vintage Nut?

Thanks Alex Nikitin and Vintage Nut

MosherIV

Hi,

Yes, I've sent my details and received the addresses from three UK members. There is also Alan (alanambrose) from the UK though he is not in the first list and did not get a PM yet.

Cheers

Alex
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #141 on: November 10, 2016, 11:57:58 am »
Alanambrose is on the list. Include him and let me know how many (10 pcs per person) to send to the UK. You will want to send via USPS Priority which includes tracking.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #142 on: November 10, 2016, 12:16:27 pm »
Alanambrose is on the list. Include him and let me know how many (10 pcs per person) to send to the UK. You will want to send via USPS Priority which includes tracking.

Thank you, that makes a total of 50 pcs to ship for five UK members, and yes, please use USPS Priority.

Cheers

Alex
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #143 on: November 10, 2016, 02:04:26 pm »
Alanambrose is on the list. Include him and let me know how many (10 pcs per person) to send to the UK. You will want to send via USPS Priority which includes tracking.

Thank you, that makes a total of 50 pcs to ship for five UK members, and yes, please use USPS Priority.

Cheers

Alex

Ok. I will pick up some USPS Prioity mailing boxes and send a PM with shipping details.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 
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Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #144 on: November 10, 2016, 02:12:43 pm »
Some housekeeping

November 4th when ivaylo updated the list, that is the final list. 42 people are on that list.  Everybody who added after that is on the waiting list.

I have on PM'd the first 18 people ( where my spreadsheet starts)  to start getting shipping information organized. People who are not the first 18 are free to PM me with the information that I asked for earlier in the thread for shipping, phone, etc. I am creating a master list with all of the shipping information of all participants.

I will begin collecting shipping fees soon and start dropping the shipments at the post office.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #145 on: November 10, 2016, 07:24:51 pm »
Alanambrose is on the list. Include him and let me know how many (10 pcs per person) to send to the UK. You will want to send via USPS Priority which includes tracking.

Thank you, that makes a total of 50 pcs to ship for five UK members, and yes, please use USPS Priority.

Cheers

Alex

PM sent to you with shipping options.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #146 on: November 10, 2016, 07:31:37 pm »
Today i visited the USPS office to discuss shipping options. I also purchased 40 padded envelopes.

The parts are too large for a "letter" envelope. The maximum thickness is 0.25 inches. The parts are larger than that.

So, the padded envelopes are charged the same as a very small and light package for first class postage.

It looks like many countries will be USD $13.50 for first class package rate.

USPS International Priority will be USD $33.95 for a Small Flat Rate Box.

I have begun sending PMs for shipping costs.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline edavid

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #147 on: November 10, 2016, 08:07:57 pm »
FYI, you can print your postage and customs forms with PayPal shipping: http://www.paypal.com/shipnow

There's only a modest savings, but maybe it will pay for the envelopes.
 

Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #148 on: November 10, 2016, 08:47:12 pm »
OK, I've just paid to VintageNut for the USPS International Priority shipment to the UK. When the bits arrive, I'll mail these out First Class Recorded. I still need the address for Alanambrose (please PM me).

Cheers

Alex
 

Offline Cerebus

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #149 on: November 10, 2016, 09:15:38 pm »
OK, I've just paid to VintageNut for the USPS International Priority shipment to the UK. When the bits arrive, I'll mail these out First Class Recorded. I still need the address for Alanambrose (please PM me).

Cheers

Alex

I presume you'll PM all of us on the UK list so that we can proportionately reimburse you.
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 

Offline technix

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #150 on: November 10, 2016, 09:42:01 pm »
Well the factory order just arrived (at 0430 local time...) and I have packaged them and printed the international mail documents. Will send them later (0540 local time now and I really need to sleep.)

I have negotiated with the factory and they can supply as many as you can take. (Probably I am now one of their distributors targeting international market?) If you still want those but never made to this group buy please PM me.
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #151 on: November 11, 2016, 02:33:16 am »
Getting started shipping. 9 envelopes to individuals and 50 pcs box for UK.

working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #152 on: November 11, 2016, 08:42:09 am »
OK, I've just paid to VintageNut for the USPS International Priority shipment to the UK. When the bits arrive, I'll mail these out First Class Recorded. I still need the address for Alanambrose (please PM me).

Cheers

Alex

I presume you'll PM all of us on the UK list so that we can proportionately reimburse you.

Thank you, I'll do that after the package gets here and I'll know the exact postage in the UK.

Cheers

Alex
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #153 on: November 11, 2016, 12:19:36 pm »
Hello Europe

There are 18 EU participants outside of the UK.

My suggestion to have one participant in the EU receive all of the 180 pieces of the 2DW232 and do the distribution for the remaining EU participants.

Please discuss and someone volunteer.

The cost to send 50 pcs USPS Priority box was USD $33.95 the UK.

As an example, for Germany:
    A small flat rate box is USD$ 33.95
    A First Class package is USD $22.50

Please somebody volunteer for distribution in the EU

best regards,

VintageNut
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline 2N3055

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #154 on: November 12, 2016, 10:43:36 am »
On 9th, Wednesday, I offered to take half of the EU distribution (based on what I know won't create any problems with customs here)..

Since in three days nobody said a peep, negative or otherwise, I'm inclined to think nobody is interested..

If that is case I will send my info to VintageNut just for me...

It's a shame that we seem to be as efficient as our EU parliament.... 
In meantime everybody else have their delivery on the way..
 

Offline SvanGool

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #155 on: November 12, 2016, 11:27:15 am »
@2N3055:

Sorry, missed your offer, I would like to make use of it.
Thanks !
# Don't hurry, the past will wait. #
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #156 on: November 12, 2016, 11:43:06 am »
On 9th, Wednesday, I offered to take half of the EU distribution (based on what I know won't create any problems with customs here)..

Since in three days nobody said a peep, negative or otherwise, I'm inclined to think nobody is interested..

If that is case I will send my info to VintageNut just for me...

It's a shame that we seem to be as efficient as our EU parliament.... 
In meantime everybody else have their delivery on the way..

I will send you a PM for details.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline 2N3055

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #157 on: November 12, 2016, 11:46:27 am »
@2N3055:

Sorry, missed your offer, I would like to make use of it.
Thanks !

That's OK my friend, I was just kinda getting impatient...

I was thinking, we get VintageNut to send me Priority, that's with tracking, for USD $33.95.. We split that between us, and probably few more, and if package with 10pcs is less than 100g that's 2€ if between 100-250g a bit more than 3€.. to whole EU zone.. I know it takes few days to Germany and Italy , it should be pretta much the same to Nederland...  If that is OK let's start:


2N3055 EU group:

- 2N3055    -Croatia
- SvanGool -Nederland
 

Offline 2N3055

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #158 on: November 12, 2016, 11:48:49 am »

I will send you a PM for details.

Thanks a lot..
Just a question, you said you weighted them, what was the weight ?

 

Offline plesa

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #159 on: November 12, 2016, 11:50:20 am »
I also make offer to distribute within EU. We can eliminate shipping cost to EU.
 

Offline SvanGool

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #160 on: November 12, 2016, 12:21:53 pm »
@plesa;@2N3055:

Quote from VintageNut:
Quote
"50 pcs is 55 grams so 10 pieces should be 6 grams plus the padded envelope which will be 50 to 75 grams probably for the envelope."
# Don't hurry, the past will wait. #
 
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Offline 2N3055

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #161 on: November 12, 2016, 12:25:52 pm »
@plesa;@2N3055:

Quote from VintageNut:
Quote
"50 pcs is 55 grams so 10 pieces should be 6 grams plus the padded envelope which will be 50 to 75 grams probably for the envelope."

Thanks for that, I was looking for it but somehow missed it... So definitely, individual 10 PCS packet will be less than 100g.  Ergo, from my side shipping to EU zone would be 14kn (1,8-1,9 €) + divided USA shipping 33.95 USD.. (EDIT) And a bit for the envelope ..

 
 

Offline bingo600

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #162 on: November 12, 2016, 01:26:11 pm »
I also make offer to distribute within EU. We can eliminate shipping cost to EU.

Plesa if you take the other half of EU.
Then i'd like to  join your desitibution.    - Provided there aren't any additional Customs costs  (we have a 80dkk limit here).

Bingo600  - Denmark


Else i'll just give VN my details for my 10 pcs , and get it over with.
I thin he mentioned $15 or something for 10 pcs to Eu.


/Bingo
« Last Edit: November 12, 2016, 01:29:29 pm by bingo600 »
 

Offline plesa

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #163 on: November 12, 2016, 02:01:43 pm »
I also make offer to distribute within EU. We can eliminate shipping cost to EU.

Plesa if you take the other half of EU.
Then i'd like to  join your desitibution.    - Provided there aren't any additional Customs costs  (we have a 80dkk limit here).

Bingo600  - Denmark

Else i'll just give VN my details for my 10 pcs , and get it over with.
I thin he mentioned $15 or something for 10 pcs to Eu.

/Bingo

OK, it just discussed over PM. I can offer basic screening parts by SMUs.
 

Offline klaus11

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #164 on: November 12, 2016, 02:19:35 pm »
grupo 2N3055 UE:

- 2N3055 -Croacia
- SvanGool -Nederland
- klaus11- Spain
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Offline manganin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #165 on: November 12, 2016, 02:34:48 pm »
I also make offer to distribute within EU. We can eliminate shipping cost to EU.

Hello neighbour.

 

Offline pmcouto

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #166 on: November 12, 2016, 02:37:27 pm »
grupo 2N3055 UE:

- 2N3055 -Croacia
- SvanGool -Nederland
- klaus11- Spain

2N3055 UE group:

- 2N3055 - Croacia
- SvanGool - Nederland
- klaus11 - Spain
- pmcouto - Portugal


Thanks 2N3055.

 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #167 on: November 12, 2016, 02:51:07 pm »
Plesa has arranged for shipping of all of EU parts.

The final list of names has 42 total names. So, there are officially 22 names for EU+UK. 50 pcs already are on the say to UK. 170 pcs ship to Plesa today.

Two shipments will post to Australia today.

10pcs will post to TiN today.

Asia is next on my list to contact for shipping addresses etc.

I have posted some results of measurements and behavior in Zlymex's original thread.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 
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Offline 2N3055

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #168 on: November 12, 2016, 05:33:28 pm »
So we agreed Plesa will take care of all members in EU..

So I will NOT be shipping anything, just Plesa..

Thank you..
 

Offline chriswebb

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #169 on: November 15, 2016, 05:14:38 pm »
Received the 10 2DW233s yesterday in the mail.  Won't have time to play with them properly for a couple of weeks due to the upcoming holiday, but just wanted to say thanks to both VintageNut for doing the logistics as well as Zlymex for the gift.
Always learning. The greatest part of life is that there will always be more to learn.
 

Offline jdraughn

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #170 on: November 16, 2016, 07:47:32 am »
Same, wanted to say thanks!

Yes, thank you very much zlymex and VintageNut!
I got my envelope as well but may not have a chance to play with them properly until I get a noise tester, temperature controlled test box, and precision current source made up. Hopefully soon.

Received the 10 2DW233s yesterday in the mail.  Won't have time to play with them properly for a couple of weeks due to the upcoming holiday, but just wanted to say thanks to both VintageNut for doing the logistics as well as Zlymex for the gift.
 

Offline rodd

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #171 on: November 16, 2016, 05:36:05 pm »
Well the factory order just arrived (at 0430 local time...) and I have packaged them and printed the international mail documents. Will send them later (0540 local time now and I really need to sleep.)

I have negotiated with the factory and they can supply as many as you can take. (Probably I am now one of their distributors targeting international market?) If you still want those but never made to this group buy please PM me.
I am new to the group and would like to buy 2. Is this the right place to ask?


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Offline technix

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #172 on: November 16, 2016, 07:23:05 pm »
Well the factory order just arrived (at 0430 local time...) and I have packaged them and printed the international mail documents. Will send them later (0540 local time now and I really need to sleep.)

I have negotiated with the factory and they can supply as many as you can take. (Probably I am now one of their distributors targeting international market?) If you still want those but never made to this group buy please PM me.
I am new to the group and would like to buy 2. Is this the right place to ask?


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PM me.
 

Offline MatteoX

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #173 on: November 17, 2016, 05:13:12 am »
I got the diodes too.

Big thanks to Zlymex for his generosity and VintageNut for organizing distribution.
 

Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #174 on: November 17, 2016, 06:56:27 pm »
I will try to post to the UK members tomorrow, failing that, the letters will go out on Monday.

Cheers

Alex

 
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Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #175 on: November 18, 2016, 06:41:36 pm »
Update - three envelopes were posted today, for Gyro, Cerebus and MosherIV.  I still don't have the address for alanambrose.

Cheers

Alex
 

Offline BravoV

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #176 on: November 18, 2016, 06:48:48 pm »
For those who already received it, I thought you guys have to post the mandatory culineray shot of "zener soup" in order to thank and honor Zlymex ?  :-DD




... j/k  ... <duck>  >:D

Offline Gyro

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #177 on: November 18, 2016, 07:20:01 pm »
Update - three envelopes were posted today, for Gyro, Cerebus and MosherIV.  I still don't have the address for alanambrose.

Cheers

Alex

About time you told us how much we owe you then Alex!  :)

Thanks,

Chris
Best Regards, Chris
 

Offline MosherIV

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #178 on: November 18, 2016, 08:36:45 pm »
Hi

Yes, how much do we owe you please?

 

Offline Alex Nikitin

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #179 on: November 18, 2016, 09:29:27 pm »
PM to the UK group sent.

Cheers

Alex
 
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Offline julian1

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #180 on: November 24, 2016, 04:20:49 am »
Package has arrived here safely. Thanks VintageNut and Zlymex!
 

Offline TiN

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #181 on: November 24, 2016, 04:32:48 am »
Just got my bag of candies too.
Too bad I'll be on local travel next couple days, but I might plonk few for quick checks tonight.  :-DMM
I guess I-V plot -15...+15V would be good starter?
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Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #182 on: November 24, 2016, 06:10:46 am »
Maximum current is 30mA and maximum power is 200mW. At 15V, you want to set current limit at 13 mA. Not sure if the part will draw more than 13mA at 15v. 
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 

Offline VintageNutTopic starter

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #183 on: November 26, 2016, 04:44:38 pm »
The final envelope shipped today. All of the parts have been shipped. Most people should already have the parts delivered.
working instruments :Keithley 260,261,2750,7708, 2000 (calibrated), 2015, 236, 237, 238, 147, 220,  Rigol DG1032  PAR Model 128 Lock-In amplifier, Fluke 332A, Gen Res 4107 KVD, 4107D KVD, Fluke 731B X2 (calibrated), Fluke 5450A (calibrated)
 
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Offline fanOfeeDIY

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Re: Group Buy of 2DW233 ultra low noise zener reference
« Reply #184 on: November 29, 2016, 10:26:16 am »
Plesa has arranged for shipping of all of EU parts.

The final list of names has 42 total names. So, there are officially 22 names for EU+UK. 50 pcs already are on the say to UK. 170 pcs ship to Plesa today.

Two shipments will post to Australia today.

10pcs will post to TiN today.

Asia is next on my list to contact for shipping addresses etc.

I have posted some results of measurements and behavior in Zlymex's original thread.

Hi,
The 2DW233 arrived today safely in Japan.

Thank you for your all the effort for the group buy.
It seems like only took 7days to arrive and there were no hassle with customs.
I have another parts to understand and play now. :)

 


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