I bought the VS265R combo amp from my older brother about 2 months ago.
(it's a 2x12 hybrid combo amp which basically means it has one preamp tube.)
he recently got it back from the shop after it wouldn't recognize a guitar plugged in, but that's not important, that was fixed.
-About a month ago, my amp starting crackling and popping while i was playing it, and sometimes it would just make a loud hum/buzzing noise after a little while but once i turned it off and turned it back on all the problems went away.
-But, about a week ago, whenever i turned it on, i'd wait for the tube to warm up like usual, but the only thing that happens is the obnoxiously loud humming/buzzing sound.
I've never used a tube amp, or an amp with a tube in it so it might be that, but i took it apart and didn't notice any problems (but i'm not amp tech)
anyone who could help me, please email me or reply to this or something. i want to get this fixed myself so i don't have to pay a million dollars to have a shop work on it for me