Too much plate voltage - Ampeg B15 Portaflex

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An update,

I replaced the two power tube sockets with ceramic sockets from Tube Depot.

http://www.tubedepot.com/sk-8pinpc.html

So far the amp is behaving itself, no self destruction and actually sounds a bit tighter overall. I will mostly likely swap out all the tube sockets for these ceramic guys when I replace the 40/40/40 500v cap that sorely needs replacing. I'll test it at on a session this weekend so crossing my fingers.

Does anyone know a source for these ceramic pcb mount sockets with slightly longer pins. These guys just barely pushed through the circuit board.

Thank you for all the suggestions guys!

Mark
 

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