FS(EU): HP 34401A, Keithley 2001, Keithley 614 (or 35614), Fluke 731B - Page 1
Forum section: electronics / general

author: FFY00
author_rank: Contributor
timestamp: January 20, 2024, 10:14:36 pm
content: Hey, due to an unfortunate series of events, I could use the money from some of the instruments that I don't find myself using very often.HP 34401A -400EUR OBOsold to a friendKeithley 2001 - 600EUR OBOKeithley 614 (or one of the 35614 variants) - 400EUR OBOFluke 731B -400EUR OBOsold to a friendI also have a bunch more stuff that I might be willing to part with. This includes a lot of HV/UHV, optical, semiconductor, etc. equipment. PM me for more info.Shipping is not included. If you have any questions, feel free to ask.

author: zrq
author_rank: Frequent Contributor
timestamp: January 20, 2024, 11:29:51 pm
content: Can you briefly describe what optical and semiconductor equipment you have? I may be interested in something.Do you have X-Ray sensors for sale?

author: Neomys Sapiens
author_rank: Super Contributor
timestamp: January 21, 2024, 12:23:08 am
content: Hello, some questions:Keithley 2001 or 2001M? Last calibration?

author: StefikMichal
author_rank: Contributor
timestamp: January 21, 2024, 11:07:03 am
content: I've sent him a PM yesterday with same questionsguess we have to wait

author: FFY00
author_rank: Contributor
timestamp: January 26, 2024, 03:08:38 am
content: Sorry y'all, I have been a bit busy. I received many questions about the Keithley 2001, as it seems more people were interested in it than I initially thought. I'll try to answer all of them here.I bought it off eBay in the US a couple of years ago, and together with that Keithley 2001, I have since been hoarding a large amount of test equipment, and it's gotten to the point I should probably downsize a bit. Initially, I was planning on getting it calibrated and characterized against my 8.5 meters (HP 3458A, Prema 6058, Solartron 7071/7081, and Advantest R6581T) after having my 3458A calibrated against a JVS. Unfortunately though, it took quite a while until I managed to start building my lab space (construction, life hapening, etc.), so everything got delayed, and this itself got pushed back even further as it depends on me having the time, and suitable place, to test my 8.5 meters to see if they seem to be working properly, so that I can send them for calibration. Now, under normal circumstances I would just wait until I have the 8.5 meter calibrated to do sell this Keithley 2001, but over the past few months my mental health problems have gotten significantly worse, which required me to stop working full time, making my income a bit unpredictable, and lower overall. In order to keep other parallel projects going, I decided that it was time to get rid of some of my instruments, and that the price hit for not having the meter properly calibrated and characterized was worth the immediate cash flow.I'll turn the Keithley 2001 today, and tomorrow I'll try to make some comparisons against my 3458A and 732A. Just please keep in mind this is just more of a sanity test, and is in no way a proper characterization, since I still don't have either the 3458A or the 732A properly calibrated. The most significant data point for the performance of the 3458A is Marco Reps comparing it against his 3458A meters, which if I remember correctly, his newer one was either already out of the 1y calibration or just about to be. That data can be found here, in the files tagged as "FFY00". If you are a Patreon subscriber or Marco's, he made a small video on this, which should probably answer these questions and maybe provide more information.Regarding the meter, it has been recapped and IIRC the firmware was upgraded, but I'll confirm that tomorrow, as well as post pictures of the meter and the test.That said, given the volume of replies I've received, I'd like to raise the suggested price to ~700, but feel free to send any offer for how much you are comfortable spending on it. I don't know if it was clear enough, but OBO in the post means "or best offer".https://github.com/marcoreps/multiinstrumentalist/tree/master/csv

author: Smokey
author_rank: Super Contributor
timestamp: January 26, 2024, 03:17:03 am
content: Quote from: FFY00 on January 26, 2024, 03:08:38 amHaving youtube EE celebrity affiliation has got to increase the price a bit. Send it to Dave for another bump and you can get over 1K for sure!ps. All the cool FS gear has been in EU recently. Jealous.

author: FFY00
author_rank: Contributor
timestamp: January 26, 2024, 03:37:42 am
content: Quote from: zrq on January 20, 2024, 11:29:51 pmRegarding, optical equipment, I have a bunch of lenses, mounting hardware, stages, etc.Regarding, semiconductor equipment, I have a some new wafers, used wafers, wafer slicing blades, probe cards, and probably some more stuff I am not remembering (I need to start taking inventory).Additionally, more specifically, vacuum and UHV equipment, I have a bunch of KF and CF gauges, valves, flanges, pipes, tees, gaskets, etc., some Swagelok valves, gaskets, etc., a bunch of untested mass flow controllers (though I wouldn't charge much for them as I got them for free), an extra turbo pump (but not sure if I am willing to sell at this time), an extra RV pump (but, similarly, not sure if I am willing to sell at this time).Regarding x-ray sensors, yes, I have a few, the caveat being that they haven't been properly tested, as at the time being I still don't have access to a setup where I could properly test them. Some of them are medical, some meant for more scientific applications:- Varian/Varex PaxScan 2520 (inc. software, calibration data, and an extra control box for a similar unit, but I still haven't managed to communicate with it)- Varian/Varex PaxScan 3030CB(?) (not sure exactly the model as I don't have here with me at the moment, but it's a camera link sensor, I have the software and calibration data, and I have been able to communicate and get an image out of the system*)- Varian/Varex 4343R (inc. software and calibration data, and I have been able to communicate and get an image out of the system*)- Hamamatsu C7942GP (haven't tested it yet, as it's LVDS, and I don't think I currently have a compatible frame grabber, and also haven't has the time to DIY one)- Hamamatsu C9250CK-07 (haven't tested it yet, as it's LVDS, and I don't think I currently have a compatible frame grabber, and also haven't has the time to DIY one)- Don't remember the manufacturer model now, but I also have an image intensifier (haven't tested it yet, but the interface is easy as it's just a camera, which can even be easily replaced, but it needs a source for proper significant testing)* The picture, here, being noise, as it was not in front of a source.For information about the Varian/Varex sensors, you can find the datasheets, and some manuals, athttps://github.com/FFY00/varian-docs/tree/main.

author: FFY00
author_rank: Contributor
timestamp: January 27, 2024, 04:24:29 am
content: I think I replied to the PMs of everyone interested, if I missed anyone, please let me know.Today I had to run some errands, so I didn't manage to do the tests. Currently, I am in the process of moving, and tomorrow I should go pick up everything that is still in the old space to the new lab, so I doubt I will be able to run the tests, but Sunday I should be able to, and I'll also have the rest of my precision-grade cables and instruments here, so it should be easier to run the tests.Additionally, I believe I have everything to cal the Keithley 2001 using the 3458A as a reference, so if the buyer prefers, I could do that.

author: FFY00
author_rank: Contributor
timestamp: February 01, 2024, 03:03:31 am
content: Well, I ended up doing way more work to characterize the Keithley 2001 than originally intended, and they're likely powering up my local JVS in 2/3 weeks, so I might just wait until then for a fresh 3458A to compare against, or even get my both my 2001 calibrated, depending on how much extra they charge me. For that reason I am delaying the sale, sorry!