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Luxman1050 · 14th Dec 2020, 2:51 pm

Trev here's some pics of module you should be able to blow up and follow the traces.
I'll list the parts and post. But you should be able to work resistor values out all coded. If not let me know. You should be able to see jump wires.
Tip33c tip34c
Mj15025g
Mj15024
Green resistors 0.3r x 2
The OHMITE gold 75r x 2
Diodes on board standard 1N4005 x 3
Diodes on heatsink IN4934 x 2 on each this are as near match to originals except ns rate is 300 as opposed to 150 for originals. That was closets I could get either it was 75 or 400 above or below so went with 300.
Caps small cans 10uf 63v
Main filters were 2200uf dual cans x 4 63v I used 4 single 6800uf 100v
Bridge Rectifier International KBPC602 X 1
OP AMP 741 (UA741CP) X 2
Red cap dogbone 75pf
Large yellow cap 1.5uf x 1
Green cap glass paper type 0.01uf x 1
1000pf x2
1500pf x2

Think that's it.

14th Dec 2020, 2:51 pm	#87
Luxman1050 Octode Join Date: Apr 2019 Location: Margate, Kent, UK. Posts: 1,728	Re: Identification of unknown PA amplifier Trev here's some pics of module you should be able to blow up and follow the traces. I'll list the parts and post. But you should be able to work resistor values out all coded. If not let me know. You should be able to see jump wires. Tip33c tip34c Mj15025g Mj15024 Green resistors 0.3r x 2 The OHMITE gold 75r x 2 Diodes on board standard 1N4005 x 3 Diodes on heatsink IN4934 x 2 on each this are as near match to originals except ns rate is 300 as opposed to 150 for originals. That was closets I could get either it was 75 or 400 above or below so went with 300. Caps small cans 10uf 63v Main filters were 2200uf dual cans x 4 63v I used 4 single 6800uf 100v Bridge Rectifier International KBPC602 X 1 OP AMP 741 (UA741CP) X 2 Red cap dogbone 75pf Large yellow cap 1.5uf x 1 Green cap glass paper type 0.01uf x 1 1000pf x2 1500pf x2 Think that's it. Attached Thumbnails