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KX voltage reference assembled ✔️ (Patreon)

Published:
2018-08-17 14:20:08
Imported:
2026-06
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Content

like 5 minutes ago. That and the lack of all shielding might be causing a little bit of of noise. Or I screwed up somewhere, which is particularly easy with melty film capacitors and tight guarding traces.

Full documentary coming soon to a YouTube channel near you. As soon as OSMU stuff is ordered :)

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August 17, 2018

Comments

Faraz Sadrzadeh

Get the indiana Jones lead refrigerator, hide inside and do another measurement

Holger P Kleinert

OK, you are first. You won :) I am almost sure that µV randomness is shielding related. You can also try to use a lead acid battery to supply the reference, I think this is what XDEV did.

Jan Ka

It's me with the stupid questions again: I thought this would provide a known value like exactly 7 volt (just as example) that you could set your measuring equipment against. Or is that what it does - you "just" have to perfect shielding so it does not change on the last significant digit?

marcoreps
>>14790105

They told us in uni all the time: If you have a question, don't hesitate to ask, there's always 20 other people in the room who are wondering about the same thing :) Yes, it is a super stable voltage source that should never change ideally. And yes, with proper shielding the 100µV noise can be reduced. µV noise is picked up on every metal object near power lines and electronic stuff in general