Paul Christensen wrote:
>
> I narrowed the root cause to a broken 8877 filament....although it was
> difficult to find beacuse it is intermittent. At the onset of filament
> current, it opens and after powering down the amp, and checking with a DVM,
> the filamant resistance reads fine. I finally got it to read an open
> resistance right at the pins with the transformer Molex connectors
> unplugged.
I don't know about 8877's, but I've had wires in the pins of glass tubes come
unsoldered due to heat caused by loose socket contacts. Is this possible here?
Vic K2VCO
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