Has anyone here dared to build this highly complicated circuit? http://www.muzique.com/schem/muff.gif Moosapotamus, I'm looking in your direction. If my suspicions are correct - this little guy would be perfect for bass. The pedal is truly full range and darned simple. I only wonder if I'm going to have problems with not being able to control the highs - I ALWAYS use my Big Muff with the tone rolled all the way down- so I may want to install some king of switch to approximate this. I'm also wanting to use an OC140 NPN because I hear it's a smoother transistor - or is that all hocus pocus. I know someone has to have built this.