HELP - Guild Masteramp issues - does anybody have a wiring diagram?

[Dylan McGee Jones]

Hello all!

I have a 56' (ish) Masteramp and it went up in flames (literally) a while back. I know the early versions of these were kind of pieced together, and i brought to Bob at Amphole in Los Angeles and he is having a hell of a time with some ground loop issues, as well as the tremolo not working properly. I think the transformer is where the fire started.

Any help is good help. Here are some images of the inside. Thank you thank you thank you!

Dylan

 

[fronobulax]

@Default

If someone has an Ouija board, maybe capnjuan will assist, one way or another.

 

[schoolie]

I found a schematic for a 1959 Masteramp, from el34world, if that's of any help.

 

[Default]

Unfortunately, the 1959 schematic is for a completely different circuit, with different tubes.
Has your guy checked that selenium diode and made sure the magic smoke is inside? Those things have a habit of letting out particularly bad fumes when they do go. That is also either providing ac to the circuit, or if it's open, only rectifying half of the wave, both of which would cause a heck of a racket.
Pm me, ok?

 

[Default]

Also, what fuse was in that thing? It should only be 1-2 amps.

 

[Default]

Also, some of the trem caps are on the back of the board, and they need to be shotgunned and replaced.

 

[Dylan McGee Jones]

@Default sent you a message! Thank you!