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Post subject: Supersonic
Posted: Tue Mar 11, 2008 7:24 pm
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Joined: Thu Sep 06, 2007 7:50 pm
Posts: 12
I recently bought a supersonic 112 combo and i get a humming noise when the reverb is up anywhere about 2.5 to 3. Not sure if this should be making noise or not.

Any tips?

Thanks


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Posted: Wed Mar 12, 2008 6:07 am
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My good buddy bought one and I did a test on all the tubes when he got it and they were all 100%. Then about weeks later he had a squeal and turned out to be a tube. This is what I think you have bad as well. Give all the preamp tubes a tap with a pencil while the amp is on and see if you can find the bad tube.


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