a real challange?

[Electronic M]

Originally Posted by Yamamaya42

I was using the term (negative side ) in a general sense as the chassis ( or ground ) is genitive in this set.
Example
https://imgur.com/KouQqr3
C85 C84 have outer foil side to gnd
https://imgur.com/T9pHSAI

Now, depending on who is asked :/ ( ask 4 people get 4 dif views, ) it may, or may not matter which way the new style film cap is put in.
some sources say it does not matter...
this says it does, :/
https://www.youtube.com/watch?v=BnR_DLd1PDI
mentions the o-scope test.
just wondering who to believe...

I've ignored outside foil in 3 RCAs of that period (and basically everything I work on) and not had any issues.

The idea of connecting the outside foil to low impedance is to shield from noise. Modern film caps are much smaller and thus have less foil and lead area (smaller caps usually get wired with more direct wiring in a restoration), and are less prone to noise pick up....there might be some special cases where it makes a noticable difference, but in most cases it is more trouble than it is worth...