Fluke 732A DC Voltage Standard & low cost DIY attempt

Alternative hermetic feedthrough pins: Tusonix / CTS 4300

00:00 Intro
02:01 Fluke 732A
02:55 732A battery
04:35 732A guarding
06:00 732A pre-regulator
07:32 732A ref assembly
09:11 732A thermals
10:42 732A 'fixes'
12:06 732A heater circuit
12:42 732A ref circuit
14:31 LTZmu 10V standard
15:33 LTZmu-metal cans
16:08 LTZmu SMD resistors
17:00 LTZmu flex PCBs
18:49 LTZmu assembly
20:23 LTZmu concepts
23:20 LTZmu surroundings
26:46 LTZmu circuit
27:48 Wavetek 7000
32:16 732A results
34:07 LTZmu no results yet

[LOOKMUMNOCOMPUTER]

im pretty sure i can make that circuit bend a little worse if you want me too hahaha. :D.

[ursanotsomajor]

The "look mum no computer" reference at 10:50 got me good 😁

[illusivec]

As someone who doesn't care about any number after the dot in his £10 Chinese voltmeter, I applaud your dedication to getting the 10th decimal of your instruments right

[klausluger]

I'm sure that jump in voltage in 2020 was just a coincidence, it was otherwise such an excellent year

[flantc]

To calibrate a voltage reference you need two additional voltage references that you rub together in an alternating pattern until they are all with in spec.

[nickstanley]

Finally, my favourite volt-nut is back.

[TheMcSebi]

my dear god the 9v and the 1.5v battery in series killed me

[josefonseca]

I know Marco, your knowledge about electronics scares me, sometimes.
"look mum no computer" was very funny tho.
Very nice video.

[PCBWay]

As always, a stellar job, Marco! More to come pls! 🎉

[elektronikzmbrtlar]

Gods have blessed us. All hail the marco gods

[deviljelly]

Nice to have the Electronics "Bernd das Brot" back with another wonderful video.

[ikocheratcr]

Those censored holes, really made my day... Love the gems you put in your videos. All the info is serious, also love it.

[hypercomms]

Memories!! I used to sell Fluke test equipment... and I very much remember the launch of the Fluke 5700 calibrator. That was 1988... man! How time has flown! I remember selling a 5700 to Siemens after I went to their office in Bayswater, Victoria on a "fishing trip" with a Fluke and Philips catalog prospecting for names and opportunities and six months later got this massive order for Fluke Calibration

[thedanyesful]

It's amazing that you put so much work into these videos while consistently demonstrating your sense of humor. This is some of the best content on Youtube.

[matt_gillard]

I was just thinking about this channel. Hope the updates are further apart due to you being good busy and not anything else. We all got day jobs and I appreciate the extra effort to post these vids.

[angelosntimtsas]

By far the most interesting YouTube channel regarding electronics, with a great sense of humour! I always learn something new and actually you gave me a wonderful idea for my next project with the flexible PCBs! Keep it up Marco!! 😉

[draco_]

Marco, I have zero, I repeat, ZERO idea what's going on here but your content, your knowledge and humor is GREAT! I can only wish I knew half of electronics as you do 🙌

[DanielMelendrezPhD]

- "Oh snap! Marco uploaded a new video. Imma watch it!"
- Excuse me, we are in the middle of a Zoom meeting...
- I know. See ya later! *leaves call*
- ...

[kingofcastlechaos]

My coworkers asked me what the last video I watched was (this one), and they have promised to never ask again. Thank you for compelling content and actual humor.

[pyroman]

I loved the "look mum no computer" reference! I about spit out my coffee!