12-14-2019, 10:17 PM
Yes. I suggested checking the 6U8s because you had it on the bench.
Those tubes can self bias through conductive traces on the micas. The more often the tube overheats, the more likely this is to happen. I have seen it in both 7591s and 7868s.
Those tubes can self bias through conductive traces on the micas. The more often the tube overheats, the more likely this is to happen. I have seen it in both 7591s and 7868s.
