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Valco/Supro Scematic Needed


 
10/9/2004 10:23 AM
Daver
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Valco/Supro Scematic Needed
Hello all. I have a circa 1967 Valco (could be a Supro) Statesman head here, model #S6699. I'm looking for a schematic. It has trem and reverb and appears to have two separate power sections that are both driven all the time. The complaint is that after an hour of playing the volume drops down to below half. I have to find out if the guy is running one of the outputs without a load. One OT looks a little scorched. It works and isn't shorted. Anyway, I'd appreciate a schematic or any advice from anyone who has seen one of these. Thank!  
Daver
 
10/9/2004 10:36 AM
Chris @ CMW amps
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Hi Daver  
 
Don't have that schematic but there's a Gretsch schematic on http://www.SchematicHeaven.com ( G6157 Super Bass ) that does have a about the same power-amp ( 4x6L6, 2xOT ).  
 
Hope this does help a little,  
 
Chris
 
 
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10/10/2004 1:15 PM
Daver
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Chris,  
Thanks. That's similar, but this one seems to have separate output jacks for each OT. Weird. I found an online place that sells schematics and they have one. Guess I'll bite the bullet and satisfy my curiosity. The thing is wired like a bowl of pasta. The PT gets pretty warm just idling for an hour. The output tubes are drawing too much current, also. I have some work to do! :)  
Daver
 
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