alright, so I know I should take it into the shop to have it looked at, but I wanted to figure out what is actually wrong with it. recently, it won't turn on. I'm not sure if this is a tube problem. Someone told me to check the fuse on the back and when I took it out, the fuse wasn't there or if it was then it's stuck inside the amp still. so I'm confused. the amp has been working prerfectly since I bought it(3 months ago). It's bound to happen to an amp of it's age, but I want to see if there's anything I can do before paying $60 just to have it looked at and then however much more on top to have the problem fixed. the power cord is also a tiny bit loose on the end, so maybe that's a problem since it won't turn on at all? but now, I'm not sure if I screwed it up more by fiddling with the fuse.