My guitar amp's been acting up for the last year or so, and as I'm finishing up the second year of my electrical engineering degree, it's been occurring to me that my inability to do anything to even try to fix it is pretty sad. I'm pretty sure that something like this isn't outside of the range of my abilities, I just have no idea where to start. So my question is, where do I start if I want to be able to understand how guitar electronics (amps, pedals, pickups, etc.) work, to the point where I can do simple repairs and maybe even try my hand at designing effects boxes? I'm hoping there's at least a few people here who tinker around with their guitar equipment who can help me out. Thanks.