Serious amount of damage on one ch from someone using handfulls of white goo under the TO3 ," insulating" the pins as they were inserted through it into the TO3 sockets, causing sparking and destruction of that socket and a load of colateral.
Plenty of info out there
But nowhere can I find the ,no load, quiescent draw from the mains. I have bypassed / isolated the mains triac board and powering via metered variac to the transformer direct at these preliminary stages of powerup. Running at 50 percent mains about 0.1 amp current draw and all monitored DC levels match between channels and clean signal on output and ps rails half expected values. Increase to 60 percent and draw climbs abruptly to 0.5 amp . So far quickly returned to 50 percent and nothing obviously overheating. Anyone happen to know the expected draw?