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In Reply to: RE: Dyna ST-35 / Tube Glow posted by mark.korda@myfairpoint.net on December 05, 2023 at 17:47:07
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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