Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Misc Schematics and Layouts => Topic started by: Frank on March 06, 2014, 08:22:08 am
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Hello. I have found a Doug Hoffman, color-coded signal trace for a Marshall 50W amplifier. I want to learn more trouble-shooting with my oscilloscope, using a Fender amp. Is there such a thing for a Fender circuit, such as AB165 or AB763?
In Doug's 50W trace, he color-coded the:
Heater Circuit
AC Signal
DC Cathode
DC Plate/Power
DC Bias
AC Signal on DC Plate
AC signal on DC Cathode
AC signal on DC Bias