I want to learn how to work on my amps so bad but I cant seem to grasp it. I have read so much my head feels like its going to explode. It's like dying of thirst but can't find a drink. I bought Dave Funk's Tube Amp Workbook and it pretty much flew right over my head. I've read everything I can find on the internet. It's strange because I can't explain the cycle of fifth's or music theory but I can play guitar. Must I know electronic theory to work on my amp? I can halfway read a schematic and a layout but I can't seem to connect the dots when I try to correlate them with my amp. Damn its frustrating. Is there a simple book someone can recommend?