output loss

i have the first edition Peavey XXX and its not working correctly. One day i go to hook up my XXX. i was just the head sitting on the cabinet plugged in to the wall.(Big mistake) I plugged it in to the cabinet as well as my guitar and let the tubes warm up as per usual. once i start to...

My son came home with his Gretsch g5120 saying it lost its oomph somehow. I'm wondering if it's a problem in the 3 way selector. The bridge pickup sounds sort of ok, but the middle/neck and neck alone sound nearly identical, and not overly distinctive than the bridge. It also seems as if the...