Recent content by HansHarz

Hello again, in the end it was a problem with the 6L6 tubes. When the noise came, the diagnostic diodes got red for ca. 0.5 sec, then green again as if there was nothing... So after changing the tubes, everything is allright now. Thanks for all your ideas.

OK, good idea to focus the problem. I have also taken a look at the block diagram. Fact is, that the noise comes up no matter wether the amp is muted or not. I am not an expert, but for me it looks as if the mute-switch cuts the signal AFTER the pre-amp. The noise comes also when the amp is...

I just came back from the rehearsal room. I changed the 12ax7 and the 12at7, but still the same noise. Any other idea?

Thanks. I will try that the next time in our rehearsal room.

Hi, since about three month my Amp makes some strange noise when power & standby is ON (example in audiofile). Autobias is OK. I have already tried to jiggle the tubes (yes, softly) and also removed and inserted them again. Still the same noise. Any clue what else to try? Thanks, Hans

Hi, i called the fender service, they told me that the fan starts at 70° Celsius / about 160°F. That is really hot... Greetings, Hans