History: i bought this amp used. supposedly it was never gigged and sat in a studio its whole life. which is basically what i do with it. since the pandemic i've been using it in my bedroom through an orange 1x12 16ohm, i've been running it in 8ohm(combo mode)
a few months ago i was playing in full 90 watt mode but at a reasonable volume, and had a massive volume drop and the amp started buzzing and an electrical burnt smell(no smoke), so i quickly killed the power and let it cool down. apparently i had disabled the transformer fan at some point? maybe it overheated? after a few hours i plugged it back in. and ran through all the settings, recto modes, diode modes, triode/pentode, loop on/off all power modes, with with out sag and everything seemed ok.
today i was playing again in 90w mode on channel3 IV with bright engaged. after a while i noticed a slight loss of gain and input brightness? at first i chalked it up to switching tubescreamers out and bad cabling. but after going direct into the amp with short cables i seem to have some loss of brightness at the input? even with the bright switch on, and the tone knob cranked on the tube screamer, im fighting for sustain/attack.
is there some filter cap on the input that could have blown? i don't think its a tube issue they have low hours and havent really been pushed hard in their life.
any ideas would be helpful.
a few months ago i was playing in full 90 watt mode but at a reasonable volume, and had a massive volume drop and the amp started buzzing and an electrical burnt smell(no smoke), so i quickly killed the power and let it cool down. apparently i had disabled the transformer fan at some point? maybe it overheated? after a few hours i plugged it back in. and ran through all the settings, recto modes, diode modes, triode/pentode, loop on/off all power modes, with with out sag and everything seemed ok.
today i was playing again in 90w mode on channel3 IV with bright engaged. after a while i noticed a slight loss of gain and input brightness? at first i chalked it up to switching tubescreamers out and bad cabling. but after going direct into the amp with short cables i seem to have some loss of brightness at the input? even with the bright switch on, and the tone knob cranked on the tube screamer, im fighting for sustain/attack.
is there some filter cap on the input that could have blown? i don't think its a tube issue they have low hours and havent really been pushed hard in their life.
any ideas would be helpful.