Tube Amps / Music Electronics
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|12/10/2000 11:23 PM|
I have a JTM 60 with low volume out. The tubes
were recently replaced, but didn't seem to help.
I don't know if the bias was set when the tubes
were replaced. I checked the bias upon turn on
and the bias read about 40ma (EL-34's)after the
amp warmed up about 5 mins. the bias read about
120ma. on one side and about 80ma on the other.
I was able to adjust the bias down to @ 40ma again
on both sides, but did the tubes get cooked ???
The volume is still low and distorted, even on the
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