Project overview
High saturated simple silicon fuzz that will blow you away. Features Sag pot to achieve that dying battery sound and an add-on toggle switch for selecting between the stock didoes, no diodes, and a free slot to choose with any alternative you want, germanium, schotky, LEDs, or any other diode you feel to experiment with.
Introduction
The KMA audio machines fuzzy bear ™ is a great sounding, highly saturated, and simple to build Fuzz pedal that’s based on the Jordan Bosston, a black little unit that got plugged straight into your guitar, and the original effect is an absolute must-have for Pedal builders size ages. People sworn by the sound of it with an almost empty battery. So KMA decided to add this feature as an external Sag control (dying fuzz knob) that allows you to get this sound whenever you like by reducing the transistor’s voltage. Well…. there was not much to do for us anymore except adding a diode clipping switch that allows you to lift the diodes (still very fuzzy), use stock or use some even harder clipping germanium diodes.
Controls
- Gain
- Sag
- Volume
For further analysis on this circuit take a look at this thread on Free Stomp Boxes Forum.
For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.
Arthur –
This thing bites! Amazing sounds from an overdriven, over the top, trebly fuzz face, to real destruction and lower octave overtones with the Sag control. The added mod (Ge diodes) allows for even more clipping (although this mode also greatly reduces the volume)
Watch out, on the PCB I received, either D2/D3 or D4/D5 must be flipped 180° for mode 1 to function correctly.