I've got the bug. i want to solder something, and i want it to be a tube amp... or some variation of one. I've bought The Tube Amp Book, and am flipping through it, and there's a lot of great info... so... i'm not sure what my goal should be... Do i start with just a preamp? If i build just a preamp, can i just use it as an effect before my current Combo, or do i have to use it directly into a power amp? I have an old tube guitar amp (non working) i haven't played with at all sitting at home in canada that i may be able to butcher for parts. will the parts from a guitar amp (transformers, mainly) be useful for a bass amp? is there anything fundamentally different? i'm not wanting to do this to save money, but to have something i've built myself... and i know how expensive it's likely to become. If i were to build a full amp, or even a preamp, what do i model it after? i've found schematics for the fender bassman, and a few others, but i'm not sure which to start with... I know i have more questions, but i can't think of them right now. can anyone point me in the right direction?