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Mcintosh 240 dysfunction

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I plugged in my 240 this afternoon and one of the power tubes flashed blue and a *crackle* came out of one channel. I unplugged it and switched the power tubes (thinking one of the Svetlanas went bad) and now no sound comes out of either speaker. The tubes all light up okay. I just got this amp back after having it worked on (I've played it a few dozen hours, so I don't think it has anything to do with that) and I really don't want to ship it off again. can anyone tell me what this might be? anything I can check on my own? I know a bit of electronics, but I've generally had other people work on my mac. Thanks.


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Topic - Mcintosh 240 dysfunction - Will Shade 20:34:47 02/25/07 (13)


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