OMG!
I have that exact model Dynavox!
You are right. What a piece of junk!
I installed a 35Z5 rectifier in place of selenium where they had old paper filter can.
I put in a pair of 35C5 audio outs in place of the 50 volt tubes.
Are you aware those are NOT wired in PP? They are in almost exact parallel.
The output transformer is not center tapped. It's tapped near the bottomfor the other output tube, and, mis matched.
The 12AX7 tubes aren't wired correctly, and, they put resistors accross volume controls because resistance was wrong, then, they put a resistor in series with hot wire of cartridge.
It doesn't get louder. Just more distorted.
What a piece of junk!
I think I'll have to re design amp just to make it usable....
Bill Cahill
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