Help - crackling sound

[davidonn]

Need some advice/help with troubleshooting. Getting really annoying crackling/static noise from the gain knob on my 5:50 on channel 1, clean mode. Channel 1 crunch mode, I don't really notice it. Channel 2 is fine. Does this sound like a preamp tube issue? Of the 5 preamp tubes, are any specific to channel 1 clean mode that I can pinpoint in my troubleshooting?

 

[BeltFedRiffs]

I would start with your V1 pre amp tube - swap that one out if you have a spare and see if that solves your problem

 

[bendo]

Outside of a tube problem, the pot likely needs to be cleaned. DEoxit will take care of that.

http://store.caig.com/s.nl/sc.2/category.188/.f