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Double vintage Keithley special (Patreon)

Published:
2019-06-06 17:23:42
Imported:
2026-06
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Content

Not quite there yet officially, but relatively speaking we are at 100k subscribers and that calls for a special. Double low voltage vintage Keihtley action. What do you think, is that too much to digest in one go?

Files

Previews only

Measuring low voltages with old Keithleys

ESP32 1kg precision scale kit http://bit.ly/2MzFeZH 10 nV and 1 pA resolution DMM https://www.welectron.com/Keithley-DMM7510-Benchtop-Multimeter ^ help me afford one of these https://www.patreon.com/marcoreps High Res CNC servos: https://www.motioncontrolproducts.co.uk/products/6/115/pronet-servo-drives-with-motors---encoder-400w/

Comments

Razvan Caldararu

Awesome video, really gets my brain juices flowing. I've been meaning to do my own thermal EMF measurements for some of my gear. Also, care to share the P/N for the Pomona spade lugs you got ? I could look around Mouser, of course... if I wasn't so lazy :D

marcoreps
>>23475988

Thank you! Pomona 3770-0 are the black binding posts which I'll probably use with copper lugs from a hifii shop Pomona 2305 are 2 spade lugs to plug 4mm banana plugs into. With enough force everything is, but these are really not good candidates for crimping to cables directly. Somehow I didn't get that impression when purchasing. Pomona 5295 seems to be a neat pre-made low thermal EMF cable

Julius Bartel

It's super nice and it kept me from studying for my finals exceptionally well, but I think it's too much for the normal, non patreon-supporting YouTube spectator.

Lukáš Kymla

I have one Solarartron voltmetr under the bech. He works fine to the 20V, anything above is nonsense. That 20V will be fine for me but i can't find reasonable priced inpunt connector or suitable replacement. Because whole device costs me about 40€ and buying original connector will be madness. Or not?

marcoreps
>>23505960

If it needs a similar 5 pin Fischer connector, yeah ... probably not worth buying. But maybe modification for 4mm banana jacks?

marcoreps
>>23528269

Yeah, what's up with that? I wanted to pay Solartron cable guy, but instead he asked for inclusion of that 'piece' ... am I airing secret messages here?