1 Chris-O-Matic 1 year ago Hello all,Can you guys help me out a bit? Here's a BF VibroChamp. It's staticky and probably needs maintenance. It'll be my fist time working inside a tube amp. I don't want to take it into someone, i wan to learn how to do this myself.I've included 2 pictures of the guts. My questions is how do I figure out what needs changing? I have a multimeter and a soldering iron... and a strong desire to learn :)It looks like some parts have already been changed out. Anyway where do i start? Also, I'm guessing i should change that 2 prong to a 3 prong power chord? Where do i start?Thank you in advance for any pointers and tips!