[sdiy] Caps, nerds, New Year's Eve and soakage

[MTG]

On 1/3/2018 11:54 AM, Byron G. Jacquot wrote:
> This reminds me of some stuff Bob Pease was doing when the LME49720 was introduced.  His seminar around that time was focusing on audio (and audiophile) topics - distortion in opamps, magic capacitors, etc.
> 
> There's a writeup where he discusses testing cap leakage and soakage - one thing he did over you was use a hiZ biffer amp infront of the voltmeter.
> 
> http://www.electronicdesign.com/analog/whats-all-capacitor-leakage-stuff-anyhow
> 
> In the seminar, he actually wrapped some wax-paper & foil foil caps, and poked and prodded them in contrast with some vintage caps and modern film caps.  The film caps did very well in comparison.
> 
> -Byron Jacquot

And that buffer idea reminds me of this:

https://www.eevblog.com/projects/ucurrent/

A Professional Precision Current Adapter for Multimeters. The only low 
cost industry solution for multimeter burden voltage and nanoamp level 
current measurement.