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Post subject: Hot Rod Deluxe squeal
Posted: Wed Aug 22, 2007 1:54 pm
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Hobbyist
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I have a Fender Hot Rod Deluxe. About 5 years old. It has started to make a squealing, staticky noise. To the point where it is unplayable. I have tried changing guitars and cables so I am able to say that it is the amp. I know nothing about amps. Before I take it in to have it looked at; does anyone have any hints??? Thanks.....John


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Posted: Thu Aug 23, 2007 1:34 pm
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Rock Star
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Joined: Tue Aug 07, 2007 2:19 pm
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Could be a microphonic tube. Turn it on and try tapping each tube gently with a pencil eraser.


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Post subject: HRD squeal
Posted: Thu Aug 23, 2007 2:33 pm
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Thanks for the suggestion..you know I did some checking and the P2A tube had a severe crack in it. I replaced all of the tubes and biased the power tubes to 70mV. It sounds great now. Thanks again......


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