Scullcom #8 - Precision Voltage Reference Modules - youtube video

[retiredcaps]

I mentioned Scullcom's youtube channel before in another thread. 

https://www.eevblog.com/forum/testgear/scullcom-youtube-channel-reviewteardown-of-older-dmm/

Here is his latest video comparing some precision voltage references.  The one that is generating so much, ahem, discussion in another thread starts at 25:54.  He does a teardown and schematic as well.



As far as I know, Scullcom is not a member here?

[mij59]

Very revealing tear down of the black box.
Is this a prototype or the "real" thing ?
Wondering what the long term stability is .