David Goff
Bobs is a super nice guy and a lot of fun to talk to. I have a vintage Ampeg V4, "72", that I have had for 50+ years. It had developed a lound hum that made it unplayable. Bob had it figured out immediately, and then went through the rest of the tubes and pots. The amp had the original 2 prong power chord on it, and he replaced it with a new 3 prong, so no need for the polarity switch any more. Now the V4 is as quiet as I remember it from 50 years ago. The beast has been tamed! Thank you Bob!