From the symptoms you have given, it could be resistors that have gone out of spec, or leaky caps, a blown bias power supply ( usually the old selenium does go bad ) or shorted opt transformers, or actually bad 7591 tubes. They could be so weak, they are burning themselves up ( and also the other stuff too ). So it could be one thing or five things simultaniously. Sounds to me you need a major rebuild, expect to spend quite a few bucks on the amp to prevent future trouble. My guess, even if you find a tech willing to be nice about it, it still could cost for a quad of tubes and lots of rebuild, about $300 bucks.
-Steven L. Bender
Got a Fisher X202C, that was presented to me as a working amp needing some TLC. Well it needs TLC and is not working. Needless to say the other trading partner is now missing in action 
, oh well one bad deal in dozens 
. I am looking for a repair tech and or advise. My OPT 7591's are overheating, getting red. I am no electrician so I am hoping someone would be kind enough to help me troubleshoot or refer me to a good tech that won't take me to the cleaners.
Tanks
Tim
