Author Topic: What did you buy today? Post your latest purchase!  (Read 1640062 times)

AUSSIE, Mr. Scram and 4 Guests are viewing this topic.

Online lukego

  • Regular Contributor
  • *
  • Posts: 238
  • Country: se
Re: What did you buy today? Post your latest purchase!
« Reply #10375 on: October 14, 2020, 08:39:48 am »
There's a curious feature where you set a "working time" (default 30s) after which the station kicks into rapid cooling mode at maximum air flow, as if the handpiece had been holstered. What's all that about?

To prevent you from cooking the chip or PCB. You should adjust parameters and/or use a hot plate if you can't blow a part down for 30 seconds.

I will try to get used to that. I have to say I'm surprised that it instantly switches from low-flow heating to high-flow cooling. Isn't the expected behaviour that the solder will be molten and the part immediately blown away? Maybe I need to listen for the beeps and point the iron somewhere else during the transition.
« Last Edit: October 15, 2020, 04:30:44 am by lukego »
 

Offline artag

  • Frequent Contributor
  • **
  • Posts: 548
  • Country: gb
Re: What did you buy today? Post your latest purchase!
« Reply #10376 on: October 15, 2020, 01:42:34 am »
Fluke 117 in pretty good condition. £80 from 'cash converters' - a kind of pawn shop.
 

Offline jmh

  • Contributor
  • Posts: 12
  • Country: gb
Re: What did you buy today? Post your latest purchase!
« Reply #10377 on: October 15, 2020, 03:55:04 pm »
TTi 1705 meter arrived today - will make a change to my little DMM flying about the bench after its leads...
 

Offline hli

  • Regular Contributor
  • *
  • Posts: 214
  • Country: de
Re: What did you buy today? Post your latest purchase!
« Reply #10378 on: October 16, 2020, 12:44:29 pm »
A pair of Keysight U1163A SMT grabbers. You can never have too many test leads and probes.
A Prusa i3 MK3S (as a kit - will keep me busy the next evenings I guess). Finally wanted to have a 3D printer that is just a tool and not a hobby (although I liked tinkering with and improving my K8200 it just needs too much attention)
And a TFMini Plus range sensor - I need a car position sensor for my garage (used MaxBotix ultrasonic sensors before, but they are problematic with temperatures around 0°C). I will see how this sensor can deal with the shape of the car.
 
The following users thanked this post: lukego

Offline Ground_Loop

  • Regular Contributor
  • *
  • Posts: 169
  • Country: us
Re: What did you buy today? Post your latest purchase!
« Reply #10379 on: October 16, 2020, 08:05:30 pm »
Finally got a plasma cutter: Hypertherm XP30

[attach=1]
There's no point getting old if you don't have stories.
 
The following users thanked this post: Cubdriver, duckduck

Offline blueskull

  • Supporter
  • ****
  • Posts: 14214
  • Country: cn
  • Power Electronics Guy
Re: What did you buy today? Post your latest purchase!
« Reply #10380 on: October 17, 2020, 08:15:48 am »
A WCH USB2.0 protocol analyzer after Windows Update bricks my LeCroy Mercury T2. Received it just now and it has already saved me more than $300 (its own price) worth of time.

Pros: simple and clean UI, no driver installation required (it used custom protocol, but Windows Update has its driver), intuitive, cheap.

Cons: no UI internationalization (Chinese only), no protocol decoding (it only decodes a whole transaction into stages, not the payload of the data stages), bad DPI scaling (written in archaic MSVC10 and MFC).

Also it misuses type A connectors for all its ports (analyzer up link, DUT up link and DUT down link) where all up links should be a connector of type B or C.

But it does use very snug and high quality Foxconn connectors rather than no brand cheap ones, so I'll just let it be.

Wishes: user land API or kernel driver interface or at least plugin API for protocol decoding. At this moment the UI can't even pick PID and VID from a device descriptor.
 

Offline djos

  • Supporter
  • ****
  • Posts: 991
  • Country: au
Re: What did you buy today? Post your latest purchase!
« Reply #10381 on: October 17, 2020, 08:40:11 am »
I got a cheap drill press the other day and finally got around to setting it up on a metal shelf. Considering how cheap this was, I'm very impressed!

https://www.amazon.com.au/gp/product/B07V4PMPTN/ref=ppx_yo_dt_b_asin_image_o02_s00?ie=UTF8&psc=1

« Last Edit: October 17, 2020, 08:49:26 am by djos »
The impossible often has a kind of integrity which the merely improbable lacks.

Visit my Tindie store for Tandy 1000 Adapters for EX, HX, SX, SL, TX & TL etc
 

Offline gamalot

  • Frequent Contributor
  • **
  • Posts: 532
  • Country: au
  • Correct my English
Re: What did you buy today? Post your latest purchase!
« Reply #10382 on: October 18, 2020, 07:20:51 am »
A few days ago, I received an email from the school informing me that I would prepare a computer for my son that can be taken to his school. They recommended a few laptops, and I am not satisfied with those models. After doing some simple searches and comparisons, I decided to buy Lenovo's L380 Yoga. For an extra 120 Australian dollars, I get a better CPU and a larger, higher-resolution screen.

 :)
 

Online lukego

  • Regular Contributor
  • *
  • Posts: 238
  • Country: se
Re: What did you buy today? Post your latest purchase!
« Reply #10383 on: October 18, 2020, 08:42:10 am »
LCR Research Pro1 Plus smart tweezers.

I'm doing hand assembly of SMT boards with ~100 element BOM and I'm hoping this will get me into the habit of checking for misplaced parts routinely and immediately when a doubt crosses my mind.
 
The following users thanked this post: djos

Online tautech

  • Super Contributor
  • ***
  • Posts: 19704
  • Country: nz
  • Taupaki Technologies Ltd. NZ Siglent Distributor
    • Taupaki Technologies Ltd.
Re: What did you buy today? Post your latest purchase!
« Reply #10384 on: October 18, 2020, 08:51:25 am »
LCR Research Pro1 Plus smart tweezers.

I'm doing hand assembly of SMT boards with ~100 element BOM and I'm hoping this will get me into the habit of checking for misplaced parts routinely and immediately when a doubt crosses my mind.
Congrats, you'll love them in no time !
Don't think they're only limited to SMD usage.  ;)
Avid Rabid Hobbyist
 
The following users thanked this post: lukego

Offline bingo600

  • Super Contributor
  • ***
  • Posts: 1511
  • Country: dk
Re: What did you buy today? Post your latest purchase!
« Reply #10385 on: October 20, 2020, 06:31:33 pm »
A lot of these "Bulgin Source  12-1.7-10"  - 12v 1.7A linear PSU's  (NOS) $4/pcs

Seems like Power One IHB12-1.7 clones , but not 100%

Now for playing w. some OXCO's

Edit: Does anyone have some info about this PSU

Edit2: TDK-Lambda HSB12-1.7  looks 100% the same  (H series)
https://sg.rs-online.com/web/p/embedded-linear-power-supplies/1731626/

/Bingo
« Last Edit: October 20, 2020, 07:01:24 pm by bingo600 »
 

Online rdl

  • Super Contributor
  • ***
  • Posts: 3124
  • Country: us
Re: What did you buy today? Post your latest purchase!
« Reply #10386 on: October 20, 2020, 10:12:26 pm »
Just ordered one of these. Have some computers that are overdue for cleaning and I'm not buying any more canned air. The Metro Datavac is maybe a bit better, but this one is much cheaper and seemed worth taking a chance on.



https://www.amazon.com/dp/B01BI4UQK0/
 

Offline Jay_Diddy_B

  • Super Contributor
  • ***
  • Posts: 2457
  • Country: ca
Re: What did you buy today? Post your latest purchase!
« Reply #10387 on: October 21, 2020, 03:17:54 am »
A lot of these "Bulgin Source  12-1.7-10"  - 12v 1.7A linear PSU's  (NOS) $4/pcs

Seems like Power One IHB12-1.7 clones , but not 100%

Now for playing w. some OXCO's

Edit: Does anyone have some info about this PSU

Edit2: TDK-Lambda HSB12-1.7  looks 100% the same  (H series)
https://sg.rs-online.com/web/p/embedded-linear-power-supplies/1731626/

/Bingo

These kind of linear supplies used to be very common. Many companies made them. You will probably find an LM723 or equivalent on the board. The main chip could be marked with a special number. They all had a similar form factor.

They should be reasonably good.

Jay_Diddy_B
 

Offline bingo600

  • Super Contributor
  • ***
  • Posts: 1511
  • Country: dk
Re: What did you buy today? Post your latest purchase!
« Reply #10388 on: October 21, 2020, 05:00:50 am »
These kind of linear supplies used to be very common. Many companies made them. You will probably find an LM723 or equivalent on the board. The main chip could be marked with a special number. They all had a similar form factor.

Yepp

ua723 + 2N3055 + driver transistor , 2 pot's (Imax ?? + Vreg), and Vout + Sense .
Only strange thing is that i can only find two rectifier diodes , not four. Wouldn't that add to the ripple & less effeciency.

/Bingo
« Last Edit: October 21, 2020, 05:02:55 am by bingo600 »
 

Offline blueskull

  • Supporter
  • ****
  • Posts: 14214
  • Country: cn
  • Power Electronics Guy
Re: What did you buy today? Post your latest purchase!
« Reply #10389 on: October 21, 2020, 05:10:54 am »
Just ordered a DSLogic Pro 16-ch version. Need to work on some JTAG devices and don't have the time to write decoder plugin for my AD2. Delivery is due in 150 minutes.
 

Online vk6zgo

  • Super Contributor
  • ***
  • Posts: 5602
  • Country: au
Re: What did you buy today? Post your latest purchase!
« Reply #10390 on: October 21, 2020, 07:35:57 am »
These kind of linear supplies used to be very common. Many companies made them. You will probably find an LM723 or equivalent on the board. The main chip could be marked with a special number. They all had a similar form factor.

Yepp

ua723 + 2N3055 + driver transistor , 2 pot's (Imax ?? + Vreg), and Vout + Sense .
Only strange thing is that i can only find two rectifier diodes , not four. Wouldn't that add to the ripple & less effeciency.

/Bingo

Two rectifiers suggest it is an old style "fullwave rectifier".

These use a centre tapped secondary on the  transformer with each half winding producing the full ac voltage needed to produce the DC output you want.
On each alternate half cycle one diode of the pair conducts, so it is still full wave rectification.

These were common in tube rectifier times, as it was cheaper to wind the transformer with a centre tap than to use four rectifiers.
With solid state rectifiers  it is usually cheaper to use four rectifiers with an untapped secondary winding.

In some special cases, like if a manufacturer makes, say both 12v & 24v supplies, the same transformer could be used in both cases, with a "full wave rectifier" for 12v , & a "bridge" rectifier for 24v.
The saving in inventory costs may justify the cost of the tapped secondary.
 
The following users thanked this post: bingo600

Offline bingo600

  • Super Contributor
  • ***
  • Posts: 1511
  • Country: dk
Re: What did you buy today? Post your latest purchase!
« Reply #10391 on: October 21, 2020, 09:12:42 am »
Two rectifiers suggest it is an old style "fullwave rectifier".

These use a centre tapped secondary on the  transformer with each half winding producing the full ac voltage needed to produce the DC output you want.
On each alternate half cycle one diode of the pair conducts, so it is still full wave rectification.

That seems very likely as there's 3 secondary taps.

Thank you for that insight  :-+

/Bingo
 

Offline blueskull

  • Supporter
  • ****
  • Posts: 14214
  • Country: cn
  • Power Electronics Guy
Re: What did you buy today? Post your latest purchase!
« Reply #10392 on: October 21, 2020, 10:45:39 am »
Just ordered a DSLogic Pro 16-ch version. Need to work on some JTAG devices and don't have the time to write decoder plugin for my AD2. Delivery is due in 150 minutes.

It arrived within 90 minutes after paying for quite some delivery fee. It's an awesome tool! I used it to simultaneously watch USB (12M) and JTAG output of my JTAG adapter, and boy, it works great.

The software is intuitive, and works just right out of the box.

I'm now thinking to invest in a 32-ch version for my PWM projects (not uncommon for a 3-phase PSU to generate dozens of PWMs at the same time, 2 stages * 2 interleave parallels * 2 sides per half bridge * 3 phases = 24 PWMs).
 
The following users thanked this post: julianhigginson

Offline 4cx10000

  • Regular Contributor
  • *
  • Posts: 117
  • Country: se
Re: What did you buy today? Post your latest purchase!
« Reply #10393 on: October 21, 2020, 11:43:30 am »
$20 for this Motech MT 4080A  :)
 
The following users thanked this post: duckduck

Online dunkemhigh

  • Super Contributor
  • ***
  • Posts: 2297
Re: What did you buy today? Post your latest purchase!
« Reply #10394 on: October 21, 2020, 12:10:47 pm »
Quote
It arrived within 90 minutes

I thought we were spoiled by Amazon same-day, but that's quite something!
 

Online BravoV

  • Super Contributor
  • ***
  • Posts: 7148
  • Country: 00
  • +++ ATH1
Re: What did you buy today? Post your latest purchase!
« Reply #10395 on: October 21, 2020, 12:17:02 pm »
Quote
It arrived within 90 minutes

I thought we were spoiled by Amazon same-day, but that's quite something!

He lives in Shenzhen.

Online mansaxel

  • Super Contributor
  • ***
  • Posts: 1083
  • Country: se
  • SA0XLR
    • My very static home page
Re: What did you buy today? Post your latest purchase!
« Reply #10396 on: October 21, 2020, 12:56:20 pm »
An Avometer Model 7, Mark 1 (I guess; it lacks the Mark 2 features), made November 1950. It is in almost perfect condition, bar some rust in the battery bay, and binding posts miss some parts. I need to verify function on all ranges. The movement is free and responds to stimulus.

Most important: It won't get turned into a lamp holder.  Pic from ad:


Online RoadRunner

  • Frequent Contributor
  • **
  • Posts: 306
  • Country: de
Re: What did you buy today? Post your latest purchase!
« Reply #10397 on: October 21, 2020, 01:14:54 pm »
$20 for this Motech MT 4080A  :)
How and Where? :scared:
 

Offline Zucca

  • Supporter
  • ****
  • Posts: 2989
  • Country: it
  • EE meid in Itali
Re: What did you buy today? Post your latest purchase!
« Reply #10398 on: October 21, 2020, 02:35:50 pm »
Just ordered a DSLogic Pro 16-ch version.

Temped now, can you also generate JTAG traffic or it is just for watching it?
« Last Edit: October 21, 2020, 02:37:32 pm by Zucca »
Can't know what you don't love. St. Augustine
Can't love what you don't know. Zucca
 

Offline blueskull

  • Supporter
  • ****
  • Posts: 14214
  • Country: cn
  • Power Electronics Guy
Re: What did you buy today? Post your latest purchase!
« Reply #10399 on: October 21, 2020, 02:51:30 pm »
Just ordered a DSLogic Pro 16-ch version.

Temped now, can you also generate JTAG traffic or it is just for watching it?

Just watch.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf