0.1 uf Russian Teflon 'doorknob' caps for $10.00 ea. (4 only)

[Downhome Upstate]

From a commercial listing on diyaudio forum:

http://www.sovtube.com/en/19-teflon?p=2

 

[Grainger49]

Luckily those are not "Doorknob" as a doorknob is enormous.  They are often over 1kV rating.