Then, I saw that Christian had updated the circuit. I like to keep the bias pot at noon so any adjustments that need to be made because of temperature can be done in either direction. About a month passed after building the Bazz Fuss, and I was using it as my main fuzz during that time. Once you have that one at a reasonable number (I think -1.6v is recommended but I prefer numbers around -1.1v as it seems to quiet down the pedal quite a bit), move on to Q2 and adjust to -4.5v using the trimpot that replaced the 2.2k resistor. From the big name brands like Boss and Electro-Harmonix to the lesser-known boutique effect pedal brands, such as Big Ear N.Y.C and Adventure Audio (the creators of the Fuzz Peaks pedal). You want to do this one first as Q1's voltages effect Q2's voltages. Building DIY Guitar Pedals for Beginners. Using a DMM, first you measure the voltage at at Q1's collector and adjust it's voltage using the trim pot at the 33k resistor. While calculators are cool, I found that replacing the 2.2k resistor and the 33k resistors with trimpots (I chose 50k as the value for both on my last build, although using a lower value for the 2.2k would be more ideal) is really the way to go. One of the biggest issues can be biasing the transistors. This is a circuit that I fell in love with and I've build probably about 10 of these, making little tweaks along the way.

Fuzz pedal schematic