01-15-2016, 10:13 PM
I tested all 4 fuses and they check out. How would I check a DC filament supply?
Would photos help with this problem or are there any schematics I don't know about?
Just trying to save on a Tech bill if possible.
Would photos help with this problem or are there any schematics I don't know about?
Just trying to save on a Tech bill if possible.
(01-14-2016, 10:28 AM)Hangman Wrote: just realized you addressed the preamp tubes being cold in your post, sorry about that.
If a few preamp tubes are not heating up, there could be problems with the DC filament supply. as I recall ampeg has DC filaments on a couple of the preamp tubes. that would seem unrelated to the switching of the power level though.