Recent content by greenmeanh1

So it appears i have fixed it. All the voltages were just below spec on the 400 300 and 200 v busses but prior to testing i was looking over the circuit and found a loose chunk of solder that had found a lodging place in the circuit. I removed it and it seemed to solve the red hot tube issue...

So is that a similar mod to what the earlier black face fenders had with a 10k resistor and a pot?? I need a source for a schematic. I have only been able to find owners manuals.

Hey guys, New here with a question. I have a DC3 amp that is giving me some problems. Two of the power tubes (EL84s) are glowing red hot and humming after amp has been on for about 5-10 minutes. I was told that more than likely it was a tube problem so i changed out the two tubes with new ones...