u/Comfortable_Slip_242

The Clean Channel on my Fender Blues Deluxe recently started making a loud white noise. It makes noise even when nothing is plugged into the amp. The louder you turn up the volume, the louder the noise gets, but it is a problem even at volume 2. The Dirt Channel is completely silent (meaning it sounds perfect). I swapped out the preamp tube in V1, first with a new tube, then with the tubes from V2. The noise does not go away. The Dirt Channel remains silent regardless of which tube is plugged into V2. The amp is plugged into a Furman power conditioner, and changing wall outlets doesn't fix it. Any suggestions are appreciated.