[Amps] COLLECTING 91B PROBLEMS

[Alex Aimette]

NOW THAT V47KP IS EQUIPPED WITH TWO 91B amps after using an lk550 for 12 
years, I am collecting 91B probelms---just in case.  So far I have:
the following:

1 failure of xfmr x3,  with the step-start resistors failing once after 
the xfmr failed.
2-failure of vacuum relay x1
3- failure of tubes after 4 years  x1

Anyone else have any Alpha 91B problemsw to report?   Let me know either 
here or at   w2ox at verizon.net

I will post the results of this research here.

alex, w2ox