Tubes Asylum

RE: Dyna ST-35 / Tube Glow

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How old are the tubes?

I could only guess that perhaps the bias has changed. Checking it might give you some ideas. Otherwise, I wonder if you swapped the tubes and the back ones would run hot like the front ones.

Beyond that and my knowledge which is dangerous, I check voltages on those sockets. Bad resistor?

-Rod



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