Just got done building and testing out my first pedal circuit. It's a simple silicon fuzz face circuit from this project at the Smallbear website. http://diy.smallbearelec.com/HowTos/BreadboardSiFF/BreadboardSiFF.htm I haven't actually "tested" it as far as playing anything. Since it's 3am, I just plugged everything up and checked to see if I was getting any sound from the output jack. Yep. Everything works. Pots adjust like they're supposed to and everything. Tomorrow, I think I'm going to go back in and remove the 8.2k resistor and replace it with a 10k trimpot so I can adjust the bias. Other than that, I thinks it's good to go. I'll find out in a few hours. Can't wait. This is only the beginning. Lol. Going down the pedal building rabbit hole. Next is a boost of some sort. Then possibly a compressor pedal. I probably need to buy some enclosures and some actual boards I can transfer to circuit to and then solder them together. For now, it'll just be metal switch/outlet boxes from the hardware store.