HELP HELP schematics for late 70s dumble

Overdrive Special, Steel String Singer, Dumbleland, Odyssey, Winterland, etc. -
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bole1
Posts: 5
Joined: Fri Aug 18, 2006 1:13 am

HELP HELP schematics for late 70s dumble

Post by bole1 »

hello i am a newbie with a dumble problem my output or power transformer blew and problaby the caps around it i need schematics or help on what to replace it with so my guitar tech amp guy can fix the problem its a late 70s overdrive special combo 50watt i am not a tech so i need to relay all the info to him any info help would be great i am in dire need it was my main amp so anyone please help thanks john
tonelab2
Posts: 278
Joined: Wed Feb 01, 2006 11:58 pm

Re: HELP HELP schematics for late 70s dumble

Post by tonelab2 »

Hi John,
Original Fender Bassman PT or OT should suit. That's what HAD used on those models I believe. Your Tech should be able to identify the tranny numbers. The schematics are here. https://tubeamparchive.com/viewtopic.php?t=419 as posted by oldmacman.
I've almost completed building one of those models mainly because I had the chassis and parts kicking around.
All the best
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