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Last night my Dynaco ST-35, which had been sounding so amazing, suddenly faded and died. When I went over to the amp I heard hissing and bubbling sounds. I unplugged it and since it was late i went to bed. I woke up this am and saw the fuse was blown, tried replacing it, it blows when the power comes on. Opening it up didn't reveal any obvious cooked resistors, capacitors, or wiring. Some of the wiring has been re-done, sort of sloppily. There are a few wires with slightly melted insulation, a few ugly solder joints, the circuit boards are a little heat-stressed, but nothing jumps out as fatal.

Dynaco Troubleshooting