I was given a broken VT30 today. I hoped the problem was the fuse, no luck. I turned it on. The input jack makes noise from the slightest touch. The volume fluctuates. The effects make unwanted noises. The speaker sounds good with another amp. This amp is very dirty. I also found two picks and a dime in the cabinet. Lucky me. The only obvious damage is in the photos. I'm hoping this looks familiar to someone. I'll replace that blown thingy after I learn what it is. I'll give this amp a good cleaning after.