>>
>>Did you have the chance to measure the resistors BEFORE the big bang?
>>Only way to know for sure.
>>
>? I have not the slighest idea of what the actual resistance was just
>before the big-bang and arc.
My point exactly. Likely the resistors went bad and THEN you had the
oscillation. And I doubt the amp was in cutoff.
> I removed the 8875s and sent them to Eimac
>for evaluation. The return letter from Eimac said that the tubes were
>apparently damaged by an "oscillation condition" which caused gold to
>evaporate from the grid. On the telephone, an Eimac rep. told me such
>this was the conclusion of the 8877 design team, who experienced the gold
>evaporation phenomenon during testing.
I could see that could happen.
73,
Jon
KE9NA
--------------------------------------------------------------------------
Jon Ogden
jono@enteract.com
www.qsl.net/ke9na
"A life lived in fear is a life half lived."
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