Jon Yaeger wrote:
Almost any Sovtek 9 pin miniature tube that I've tested and that has been in
service for a few years is bad (e.g. 6922, 12AX7).

Jim McShane says that current Sovtek production doesn't have this problem.
I'm not entirely convinced. Makes me want to stick with NOS stuff just to be
safe . . .

Anyone have a similar or contrary experience?

Jon

Supposedly from what little I know the recipies for the materials used
in NOS tubes are better and last longer with more consistency. I can't
use JJ or GT or Sovtek. A GE or RCA or Sylvania just makes me so happy
everytime they light up.