ghost noise/buzz with playing (V4)

[tdbassman]

As Coach Lombardi said: "When all else fails, go back to the basics. Cables is one of them.

hmm, could be a lot of things.

Did you end up setting your bias a little higher than the roughly 19ma per tube you were initially experiencing?

if there is enough crossover distortion that can certainly become audible.

do you have a scope? can you feed the input a 1k sine wave, plug the amp into a dummy load and view the output on the scope?

No, I left the bias stock.

The problem ended up being the instrument cable! I thought initially it was an issue with my pedalboard so I took everything out of my chain except guitar and cable but it was that cable that was causing it!

I also used a little Deoixt Gold G5 on the rockers. I'm not 100% sure, but that may have fixed the issue with the Treble Control/Treble Rocker.