Hi All,
My amps seen to be working ok but when I wen't to ckeck the bias today, I can not bias them. I get a reading of around 10-30 millivolts and no matter which way I turn the bias pots, the voltage reading stays the same. This is happening on both amps. what may have caused this or am I doing something wrong? I test from pins 2-3 for negative probe and 5, 8 for the positive probe. Can not get 700 millivolts. Any help would be appreciated.
Should I not use the amps untill figure this out? The seem to work and sound fine allthough there is a little hum at idle. No hum noticed before.
Yellow_Light_Colorz_PDT_14