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B-115 one-tenty; Hums (all SS not HD)

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A. Huss
Posted on Friday, September 16, 2005 - 08:01 pm:   

Inherited this broken amp from an uncle who thought I might be able to fix it. This would make a nice little bass amp. What it does is hums like a tube amp with no bias and then blows the 5 amp fuse. It sounds like my uncle tried to drive the speaker with a more powerful amp with no regard for power ratings or impedances (he wouldn't admitt it though.) what does this do to a solid state amp?

Come on all you MM guys, do I have a prayer?
A. Huss
Posted on Wednesday, October 12, 2005 - 11:25 am:   

Just in case anyone is paying attention out there, i fixed this amp by replacing the two power transistors in the output section. Thanks to Steve for providing links to the schematics.
michael kaus
Posted on Thursday, October 13, 2005 - 04:46 am:   

That would have been my guess but I guess I didn't see this one! Damn, everybody's smarter than I am!