#1
I have a bogner alchemist that buzzes when play. It doesn't buss when the volume is low but as I higher it, it starts buzzing. I checked all the screws in the amp and tightened everything, but it still buzzes. I suspect that the cause can be the tubes. Any suggestions?
#2
What kind of guitar do you have?

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#3
Could be a number of things. Single coil pickups, grounding issues on the amp or the guitar, bad wiring, close proximity to certain electronics such as computers, and the list goes on and on.
Fender '04 Strat
MiM Sunburst with Maple Neck

Ibanez TS-808
Fender Blues Junior
Marshall JTM60
#4
I think I should rephrase tube buzz to tube rattling. The tubes are not microphonic but they sound like they're rattling. Any way to fix it other than changing them?