I don't see 2SA872 on Mouser, is KSA992 a good sub?

T4 E to B  0.3V

T1 E 0.6v
   B 0v
   C -35.8v

T2 E 0.6V
   B 15.1v
   C -36.5v

R5 671 ohms

D1 checks good

So looks like T1 is bad?

I corrected that above, yes it was just a typo. Voltages are correct for the given transistors.

Had a few other projects to tend to, but finally got around to getting those voltages.

T6 MJF122
E  34.6V
B  35.5v
C  35.1v

T4 TIP29
E  -39.5v
B  -39.2v
C  35.2v

Everything in that string is good. Retested T4 and T3 are good. Replaced T6. Made sure pinouts are all correct. Still showing voltage at the output.

That helps, will report back with my findings..

Remeasured T4 and voltages listed are correct. Originally had a TIP29CH replaced with TIP29C.

T12 E 30.8
    B 33.8
    C -38.3

So I did have the collector wrong of T12.

All diodes and .33 emitter resistors test good.

T4 E -35.7v
   B -35.3v
   C 31.5v

T6 E 31.6v
   B 31.9v
   C 32.1v

T9 E 30.9v
   B 32.2v
   C 32.1v

T12 E 30.9v
    B 31.8v
    C 30.8v

100W bulb. DC was present with no load.

Looks like I'll have to wait until tomorrow to start testing this entire board.

I replaced the output transistors (TIP 142, TIP 147) and installed with the micas. Also replaced TIP29C and a J111 that were bad. Im getting a low brightness (not really dim) on my bulb limiter and a buzz/hum through the speaker. No guitar signal coming through. Tested for DC at the output jack and it was at 33V! Shut it down and started testing components. All diodes test good, and all capacitors test good. Checked some resistors in areas i felt were critical and haven't found anything off. Do you think one of the TO92 transistors is at fault? Or did I blow an output again?

There is some metal exposed on the back of these newer transistors. I think it will be best to use the insulators.

It originally had transistors with the metal tab. Only held to the heat sink with a surface clamp. The replacements I have are the newer type.

According to the schematic not grounded. I'll order the spacers.