Author Topic: What did you buy today? Post your latest purchase!  (Read 1614622 times)

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Offline kallek

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Re: What did you buy today? Post your latest purchase!
« Reply #10350 on: October 01, 2020, 05:24:18 pm »
Desoldering tool here too! Not station but original Edsyn SOLDAPULLT Deluxe solder sucker!

I also ordered Amprobe 33XR-A as a second meter, and some smd components and leds.
« Last Edit: October 01, 2020, 05:26:36 pm by kallek »
 

Offline dl6lr

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Re: What did you buy today? Post your latest purchase!
« Reply #10351 on: October 01, 2020, 06:01:52 pm »
Hey,

yesterday a Kunkin KP184 DC load arrived. But that one was partially DOA  :( Still waiting for the reply how to proceed (only automated reply) and do not want to break the "seal" yet.
Ordered another one today as the price tag was pleasant.
 

Offline Mr.B

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Re: What did you buy today? Post your latest purchase!
« Reply #10352 on: October 03, 2020, 03:03:22 am »
Not purchased today, but a week ago at a small Christchurch gem show.
(IC for size reference and... well... because it should be there.)

« Last Edit: October 03, 2020, 03:04:57 am by Mr.B »
Time is the overseer of all things.
 
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Offline tautech

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Re: What did you buy today? Post your latest purchase!
« Reply #10353 on: October 03, 2020, 04:21:10 am »
Not purchased today, but a week ago at a small Christchurch gem show.
(IC for size reference and... well... because it should be there.)
Cats whisker not included.  :-//
Avid Rabid Hobbyist
 
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Offline Mr. Scram

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Re: What did you buy today? Post your latest purchase!
« Reply #10354 on: October 04, 2020, 12:17:01 pm »
Desoldering tool here too! Not station but original Edsyn SOLDAPULLT Deluxe solder sucker!

I also ordered Amprobe 33XR-A as a second meter, and some smd components and leds.
An Edsyn is on my list too. Their mailbag plug was pretty effective!
 

Online mansaxel

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Re: What did you buy today? Post your latest purchase!
« Reply #10355 on: October 04, 2020, 01:22:39 pm »
Scored a MetraHit 25 on local auction site.  I think I'm good with multimeters for some time now.



Price was OK, but not fantastic. OTOH, shipping is next-to-free, which never is so if you score a bargain from overseas.

Offline Messtechniker

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Re: What did you buy today? Post your latest purchase!
« Reply #10356 on: October 04, 2020, 03:26:50 pm »
Got myself three LC-ADC-F103C8. 10 channel ADCs.
Just for fun because they are dirt cheap.
Also cobbled together a recoding proggy for these. See pics.




Agilent 34465A, Siglent SDG 2042X, Hameg HMO1022, R&S HMC 8043, Voltcraft VC 940 M-Audio Audiophile 192, R&S Psophometer UPGR, 3 Transistor Testers
 

Online capt bullshot

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Re: What did you buy today? Post your latest purchase!
« Reply #10357 on: October 04, 2020, 04:39:08 pm »
Got that Keithley 238 from forum member Ice-Tea, now it has finally made its way into the instruments shelves:



This is the 100M resistor that is connected:


« Last Edit: October 04, 2020, 04:40:57 pm by capt bullshot »
Safety devices hinder evolution
 

Online lukego

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Re: What did you buy today? Post your latest purchase!
« Reply #10358 on: October 04, 2020, 05:26:45 pm »
Quick TR1100 hot air station. Curious to see how it performs on small parts e.g. 0603. I have the Quick 861DW already but I only use that on large parts due to its bulky "garden hose" handling.

Hasn't arrived yet...
 

Online blueskull

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Re: What did you buy today? Post your latest purchase!
« Reply #10359 on: October 05, 2020, 02:44:40 am »
Fluke 190-204 4ch 200MHz scope.

Spare the formalities, here is a summary of what I found it is good for and what not.

Pros:

1. 5Gsps ADC shared by 4 channels, a single or any combination of two channels can utilize 2.5Gsps, three or all channels can have 1.25Gsps each, plenty enough for 200MHz BW and sub-ns channel-to-channel resolution.
2. Segmented memory of up to 100 samples. This feature cannot be turned off. Every time it triggers, it will go into the waveform FIFO. Each waveform can be as long as 10kpts. Not too short for my needs.
3. Fully and independently isolated with surprisingly good CMTI. I tried to probe a very fast half bridge's high side gate, and it went well with 20MHz BW limit. I also tried to probe high side Vgs, and it also sent well even without a bandwidth limiter.
4. Though not rated for, it does have repetitive triggering and probability-based intensity, making it effectively a DPO with unknown trigger rate. Didn't get a chance to measure its trigger rate, though.
5. CAT IV 300V input, center to reference. 1kV 10:1 input, so presumably also 1kV rating between references.

Cons:

1. Very primitive LCD display. 320*240 for a very large size means pixel size it ridiculously large. Also scanning is visible and refreshing is very slow (somewhat 10fps). Viewing angle is great, but color is not so good.
2. PC program doesn't work well under Windows 10 due to the USB driver is proprietary and supplied driver can't work under Windows 10. Very picky USB stick compatibility, so be sure to get a small and old drive.
3. No channel-to-channel deskewing capability, making power integral from volt/amp probes very hard and inaccurate. Not a big problem though as I was able to utilize its high CMTI and fully isolated channels to probe current using a resistor, effectively measuring everything using the supplied voltage probes.
4. Huge power brick. 10W of power in the size of a 330W gaming laptop power brick size, presumably due to CAT IV requirements.
 

Offline rsjsouza

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Re: What did you buy today? Post your latest purchase!
« Reply #10360 on: October 05, 2020, 02:57:52 pm »
1. Very primitive LCD display. 320*240 for a very large size means pixel size it ridiculously large. Also scanning is visible and refreshing is very slow (somewhat 10fps). Viewing angle is great, but color is not so good.
Nice summary; Flukes tend to have those "ancient displays" - I still don't know if it is due to them sticking to an older microcontroller or perhaps they feel that less resolution is more robust for the field (in contrast with TFT stuff).

2. PC program doesn't work well under Windows 10 due to the USB driver is proprietary and supplied driver can't work under Windows 10. Very picky USB stick compatibility, so be sure to get a small and old drive.
Did you check if your pendrives are formatted in exFAT or NTFS? I noticed that most embedded equipment usually works (or performs better) with FAT16/32.

4. Huge power brick. 10W of power in the size of a 330W gaming laptop power brick size, presumably due to CAT IV requirements.
I also have some equipment that has large bricks; I love them and the fact they use larger capacitors with longer life (the ultra-compact capacitors usually are rated for less hours). Not to mention transformers and room for extra insulation around the board.
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...
 

Online MasterTech

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Re: What did you buy today? Post your latest purchase!
« Reply #10361 on: October 05, 2020, 04:52:59 pm »
I tried to probe a very fast half bridge's high side gate, and it went well with 20MHz BW limit. I also tried to probe high side Vgs, and it also sent well even without a bandwidth limiter.

Out of curiosity, what is the slew rate and voltage of the Vds and Vgs rise time of such a fast half bridge? Just to have a reference.
 

Online blueskull

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Re: What did you buy today? Post your latest purchase!
« Reply #10362 on: October 06, 2020, 02:20:31 am »
Out of curiosity, what is the slew rate and voltage of the Vds and Vgs rise time of such a fast half bridge? Just to have a reference.

I can do a measurement when I get back to my office. I have the scope with me, but not high voltage supplies at home. It's Chinese National Day, and I'm not returning to office until 10/12.

Did you check if your pendrives are formatted in exFAT or NTFS? I noticed that most embedded equipment usually works (or performs better) with FAT16/32.

8GB, Kingston 8GB DT101 (very old, around 2010), MBR, FAT32. The scope can detect the USB but won't show files and file browser gets stuck forever until I pull the drive out.

The scope does, however, work with the same drive if I format only the first 2GB of space and leave the rest unformatted. It seems the firmware doesn't like larger drive partitions.
 

Offline rsjsouza

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Re: What did you buy today? Post your latest purchase!
« Reply #10363 on: October 07, 2020, 01:35:03 am »
The scope does, however, work with the same drive if I format only the first 2GB of space and leave the rest unformatted. It seems the firmware doesn't like larger drive partitions.
This is annoying indeed. Perhaps they used int32_t as the disk size; who knows?

I have some 512MB pendrives just for this task - given the low resolutions of the screens, such small size holds an eternity of screenshots. Sure the full 140M points of my DS4014 quickly exhaust it, but it is quite rare for me to actually need it.
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 ChristofferB

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Re: What did you buy today? Post your latest purchase!
« Reply #10364 on: October 07, 2020, 05:25:27 pm »
Got a Brookdeal lock-in amplifier for next to nothing! Seems to be working as intended, and in a nice half-rack form factor.

I also bought a 1960s NOS quartz fibre dosimeter kit. The old military/civil defense pen dosimeter typically go to multi hundred R, but 200 mR pens are available on ebay occasionally. Would be interesting to actually measure my background dose.

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Online lukego

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Re: What did you buy today? Post your latest purchase!
« Reply #10365 on: October 07, 2020, 05:33:55 pm »
Got the Quick TR110 hot air pencil today. Quite nifty. I'm now able to work on individual 0402s using hot air pretty comfortably. Happy to have that capability for 300 euro.

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? Caught me by surprised on my first test here and blew a resistor off the bench:



Otherwise impressed with the unit and how it handles although the UI is one of those digital disasters with too many modes and options, not the same nice feeling as their 861DW.
 

Offline djos

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Re: What did you buy today? Post your latest purchase!
« Reply #10366 on: October 07, 2020, 09:40:31 pm »
After seeing Dave review it recently, I bought a KOTO Fume extractor to replace my cheap and nasty ebay unit. Unfortunately, shipping is expensive so landed it cost me $192 Ass-trailian Micro-Pesos. Still seems like good value compared to other alternatives.

https://www.amazon.com/gp/product/B07ZHH5H7N/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

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 dunkemhigh

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Re: What did you buy today? Post your latest purchase!
« Reply #10367 on: October 07, 2020, 10:18:28 pm »
Hmmm. THat's £203 in Amazon UK, and shipping from the US is apparently $41. Stunning bargain for us to buy from there and ship a quarter of the way around the world instead of buying local.
 

Offline djos

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Re: What did you buy today? Post your latest purchase!
« Reply #10368 on: October 07, 2020, 10:39:16 pm »
Hmmm. THat's £203 in Amazon UK, and shipping from the US is apparently $41. Stunning bargain for us to buy from there and ship a quarter of the way around the world instead of buying local.

For me it's still $50 AUD cheaper than a Hakko FA-400 which is nothing to write home about. It's also $1,400 cheaper than a Hakko FA-430!
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 BravoV

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PCN IRH Series Power Resistors
« Reply #10369 on: October 08, 2020, 12:04:28 pm »
Another used Japanese PCN's power resistors hoard.  :palm:

Smaller ones are rated 150W(mounted)/105W(free air), and larger one is 300W/210W respectively.

Accuracy 2%, 260ppm/C temp.co, can withstand 5X overload for 5 second, with accuracy within 2%, and with dielectric strength 1500V AC for 1 min.

Datasheet -> PCN IRH Series power resistor

The "W" attribute at label means low inductance series, measured with LCR, all have approx.  1uH@100kHz, not sure if these considered low inductance.  :-//

As usual, shot with TO-220 as reference size.  :P

Offline TerraHertz

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Re: What did you buy today? Post your latest purchase!
« Reply #10370 on: October 08, 2020, 02:24:13 pm »
My old HP 1630G is far from the best LA I have, but it's still my trusty, simple favorite.  Recently an identical one was listed on the 'bay, as an auction starting at one cent. Hmm... I wonder? I set up a low snipe bid, just in case everyone else thought it was too ancient to be of any interest.

And so, behold. A really nice old logic analyzer won for ONE CENT. (254706863961) The seller was good about it, glad it was going to a good home. He did a very solid job of packing, . The international shipping baboons (UPS this time) did their worst to the box, but thanks to excellent padding the 1630G came through perfectly.

All it needed was one dreaded RIFA mains filter cap replacing, before power up. It works!


Wish I'd had the same luck with two other recent buys:
* A HP 16500C LA. Sold cheap as 'for parts'. Arrived undamaged but it turns out the PS is sick, plus HDD and MB memory DIMMs had been removed. Hopefully I can fix the PS, then scrounge a suitable HDD, reload it, and find correct DIMMs.
* A HP 4145B, working, perfect condition, relatively cheap. But despite adequate packing, UPS managed to give it some dinged corners on the way from USA to Oz. Heavily dropped, apparently. At least it still runs, but the dings are very disappointing. Shipping insurance claim time.
Collecting old scopes, logic analyzers, and unfinished projects. http://everist.org
 
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Offline KaneTW

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Re: What did you buy today? Post your latest purchase!
« Reply #10371 on: October 09, 2020, 09:33:47 am »
A Formlabs Form 3, and a Keithley DMM6500.

Now to find a FDM 3D printer that fulfills my requirements...
 

Online ledtester

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Re: What did you buy today? Post your latest purchase!
« Reply #10372 on: October 14, 2020, 12:22:49 am »
Found at my favorite surplus store...
[attach=1]
 

Offline Ed.Kloonk

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Re: What did you buy today? Post your latest purchase!
« Reply #10373 on: October 14, 2020, 12:37:30 am »
Found at my favorite surplus store...
[attach=1]

Crypto mining, are we?

 

Online blueskull

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Re: What did you buy today? Post your latest purchase!
« Reply #10374 on: October 14, 2020, 01:56:29 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.

Otherwise impressed with the unit and how it handles although the UI is one of those digital disasters with too many modes and options, not the same nice feeling as their 861DW.

When iron designers try to design digital systems :palm:. My JBC Nano refuses to boot and gets stuck in a blank white screen once every a few power ups.
 
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