I have a rudimentary understanding of circuits and I decided to start building guitar pedals. So far I've got a working LPB-1 clone on a breadboard (with an added gain adjustment) and I'm going to attempt to etch the PCB for it next week. I think my next project is going to be a distortion or fuzz pedal. Looking through the schematics they all seem to use different op amps and transistors, what would be a good assortment of these parts to have on hand and where do you guys get your parts from? Thanks for helping out a noob :-)