I think I might have fixed it, but I wont know for sure until Saturday :( . When I got home from work yesterday, I opened it up and found that one of the fuses was blown. I'm guessing this amp is close to 10 years old, and still has the original... everything(minus the new tubes I immediately installed when I got the amp). So, I'm guessing I should go on and put in all new fuses.

One more question... How can you tell if caps are going bad? What sound characteristics will this have on an amp?