Won't the electrons fall out?
Exactly to keep them in place, as magical ADC board is on bottom side.
Interested people about 3458 might
want to stop-by this thread about that unit. Beware, and wear anti-voltnut mask while entering, or you can pick that virus too.
I'm just doing some testing and need access to ADC and AC boards. 17kg and size of these meters aren't very friendly to flip them very often.
Sent into Hack-a-Day. Too clever not to share.
It's just as Qtips like you call them fit shrouded bananas perfectly, keeping wire inplace.
They are not metallic, so there is no additional thermal mass which could slowdown thermal equilibrium during microvolt-level precision measurements.
Also not abrasive, so they don't ruin connectors like the metal post would do.
Also they are cheap and easy to replace once become wasted.
But yea, that's another reason why I like binding posts on 3458A's, just so much easier to get good connection every time without jerking around cables. Before I got 3458 I was thinking "shrouded bananas! Great connector, nice and robust".
What's the story with the 10kOhm foam
Foam to reduce air drafts, which cause thermal EMFs
![Smiley :)](https://www.eevblog.com/forum/Smileys/default/xsmiley.gif.pagespeed.ic.R8GFI-pF6f.png)
There is resistor under foam.