I've got a 2 year-old Fender Bassman 200 combo. It's the black-face type made just before Fender bought SWR a year or so ago and went "silver-face". All of a sudden my 200W amp sounded like a 5W amp - almost no power and lots of cheezy fuzz. Opened it up and checked the connections (ribbon cables, etc.) - now it seems fine! Any of you folks have problems with the ribbon-cables between circuit boards or other wires getting a bit oxidized? Especially Fender Bassman 200 (or 100) combos?