I posted this up recently and am adding a bit more info- I have an approximately 1-yr old Fender Deluxe Reverb-Amp and it has recently begun to make a noise-floor like sound that increases in volume until it pops really loud at the end. I tried unplugging both the footswitch pedal and also the speaker jack and it still makes the noise, randomly, and repeatedly, whether the volume is up or not. Moving the pots makes no difference; it seems to be coming from an internal isolated problem. thank you for the help!
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