This might turn into a re-furb - I have nearly all the parts (caps, diodes, transistors and relay) already. But I can't really find any faults with the unit as it sits, stock.
I've already done the PS\idle\DC adjustments and they all landed right where they should be. I did hit nearly the bottom limit on the pots to get idle adjustment tho (R763).
PS was way high, at 47VDC - adjusted down to 35VDC.
DC was high, 17mv and 24mv. Both adjusted down to 2-3mv.
Idle was high in the 40's mv. Both down to 10mv (across both emitter resistors).
Load test (8.3 ohms) with 250mv into Aux produced about 85 watts, just before clipping.
Square wave is holding nicely at full output, 1Khz
I've already done the PS\idle\DC adjustments and they all landed right where they should be. I did hit nearly the bottom limit on the pots to get idle adjustment tho (R763).
PS was way high, at 47VDC - adjusted down to 35VDC.
DC was high, 17mv and 24mv. Both adjusted down to 2-3mv.
Idle was high in the 40's mv. Both down to 10mv (across both emitter resistors).
Load test (8.3 ohms) with 250mv into Aux produced about 85 watts, just before clipping.
Square wave is holding nicely at full output, 1Khz