Fur Face

Fur Face is our take on the Fuzz Face circuit, designed to be easy to build. The pedal uses npn-transistors instead of pnp to simplify the power circuitry. It has biasing pots for both transistors to allow builders to experiment swapping parts and tuning the device.

Enclosure designs for all of the Beastly Series are made by F I Z.

Resources

• Kit Documentation
• Schematic
• PDF Drill Template
• Tayda Drill Template

Biasing the transistors

Use a multi-meter to get to a good bias starting point:

1. Clip the black lead to any ground point on the pedal (e.g. the audio jack ground) with an alligator clip;
2. Clip the red lead to the collector of Q2, using the trim-pot try to get the voltage to ~4.5V;
3. Move the red lead to the collector of Q1, get it anywhere between 0.6V and 1.5V;
4. Go back and forth between collectors of Q2 and Q1 a couple more times to make sure that the values are as listed above. Biasing one transistor might throw off biasing of the other.

Once you get the initial bias, I recommend plugging the pedal and tweaking the bias by ear. Bias point of Q2 affects the sound the most, but feel free to experiment with both!