Sounds like a great idea, I will try that and post what I find.

If I use the Studio Bass schem its R140 or R142 33ohm 10W. Glad I found that 10W figure. I'll get my parts today but may be after xmas before I get any more time in it.
Thanks for the info JM.

I planned on replacing the output transistor at the same time, I am aware sopmething else is wrong down the line, why else would resistors blow, I figured that may be the cause as it usually is. I have bands of orange, orange, black, silver on the resistor, that is a 33 ohm and it looks a lot bigger than a 1 watt.

The burned out guy is a 33 ohm 10%, is it safe to say a 5W will be sufficient?

Definitely keeping the speaker. I'll try to find a replacement but I will get it reconed if I have to. I'm sure this will be worth more in the long run if I keep it as original as possible. I do know those speakers sound good!

Best pic I have at the moment, top right corner of the board just left of a ceramic resistor are two brown resistors. The one on the bottom of the two went up in smoke. Thanks for the schematic, looks similiar.

Yep there were numbers stamped on the speakers alright. I'll check that tomorrow. I'm gonna try as best I can to keep it original. Thanks for the info!

This cab has 4 - 10" speakers. One was blown. So I'm on the hunt for one of those as well. I plan on completely restoring this amp.

So I am finding out. I believe they only made it in 1975.

Picked up a Sunn stage lead for next to nothing. Has power but no sound. Found an open 680K resistor which I replaced. When I powered it up it fried one of the power resistors on the board. I couldn't find a schematic for it anywhere so anyone had any luck with these?