Peavey Triumph 120 head - power tube board is burnt

[gui_tarzan]

Are replacements available anywhere? The part number is 98850600 and I looked around, even on *bay and don't see any. I would call Peavey but they're closed now.

[gui_tarzan]

I did get ahold of Peavey, it's been discontinued as I figured. She said I could ship it to them for repair but I said it's got a hold burned through it. Her response was "oh my...".

[J M Fahey]

I always obsessively insist "pamper the PCB" because it IS the amp, what make it that one and none other.
Think of DNA if you wish.

All other parts can be bought over the counter and replaced.

Try that with a PCB ... any PCB.

At most, *a few* Pro Power Amps offer full (populated) PCBs for instant guaranteed repairs ... at prices which will make you cry, often 60% to 80% price of a NIB full amp.

Somebody here paid GBP320(over 400U$) to repair an Peavey box mixer, which probably can be found on Craigslist for less.

In your case, there's 2 options:
a) burnt PCB is a sub-module, with power tube sockets and not much else.
In that case you may junk it, and wire regular chassis mount sockets and maybe a couple terminal strips for a couple extra parts .
2) it's a huge "all inside" PCB ... in that case I'd plain junk it, and mount a Ceriatone/Hoffmann/whatever classic board, reusing chassis, iron and sockets.

[tedmich]

My butt ugly Ultra (PAG) 120 has a Preamp board labeled "Triumph" does the PA board look the same?



I etched and drilled a 5150 PA board in about 2h, it doesn't look OEM but works!

[gui_tarzan]

This one is under the other board, it's the one the power tubes plug into. I can etch a new board too but I think the cost would be prohibitive. I guess it depends on how in love the customer is with this amp. The other tech tried to save it but I think he botched it up more.

[Jazz P Bass]

Heck, I've seen a lot worse than that.

I deem it repairable.

As far as I can see you have one lifted trace & some burnt stuff.

Scrape off the burnt carbon & run a few selected jumper wires.



Peavey Triumph 60-120 Tube Board.pdf

[tedmich]

I second JPB, that board is very repairable!

this is what I had to deal with for 5150

[Jazz P Bass]

Eeew!

[Enzo]

I'd count my blessings if someone told me the board was burnt up and that was all I saw inside. Cut away the cancer, and just hard solder wires to take the place of the destroyed ribbon connector stuff.

And even if the board were totally burnt to a crisp, instead of etching a new board, I think I would just mount four sockets on the chassis and hard wire the things. The board is nothing but the four tubes and the resistors to support them. Add a couple flyback diodes and a few tiny caps and there you are.

[gui_tarzan]

Yeah that's what I was thinking too. I think the best option for this one is to cut the connector off the cable and hardwire it to the board where the traces and board are still good.

[Kwm488]

Hi
I just buy second hand 5150. This board also burned. Can anyone tell me why this happen occur?

EDIT: See this thread: http://music-electronics-forum.com/t44850/