Electro Harmonix’s Big Muff Fuzz Pedal is such a legendary effect. All the sustain and distortion you can want for metal or roll back the levels and get a nice dirty blueshouse sound. Looking around I found a site that has a ton of info about fuzz boxes, including the Big Muff and a ton of other pedals. He even goes as far as mappng out the PCB, schematics and component layout, which is genius and is so helpful to make your own pedal clones, or just to have the info for modifying your current pedal. Read more to see pictures and then check it out for sure over at FuzzCentral