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Bias Adjustment
Instruments: DC mull-voltmeter
Notes: Prior to Bias Adjustment. run about 5 minutes with rated output (8 ohm) and warm up Power Transistor and Heat Sink.
Set Volume Control to Mininum.
Coupling
Step Adjust Adluet tor
Plus Lead Minus Lead
1 TP3 TP1 V8601 DC mull-voltmeter
reads 3.0mv
2 TP2 TP4 VR602