The Chemical Burn is a take on a juggernaut of 60s fuzz sound - the Shin-ei/Companion Superfuzz FY-6. Chemical Burn is an almost-faithful reproduction of this classic, with a few modern twists that make it more usable and versatile and add new operation modes to this classic circuit. The basis of operation remains the same.

If you're looking for a subtle fuzz that cleans up well when you back off the volume control, you're clearly in the wrong place.

Controls:

DAMAGE: This 3-way switch controls the amount of octaving / fundamental cancellation:
SKIN - The fundamental at its maximum/least octaving. “Trails” on fast decay notes.
FLESH - Some cancellation and octave. Some “trails” possible.
BONE - Maximum octave mix, like the stock FY-6 Superfuzz.

STATUS/MODE LED: The colours display the DAMAGE mode: BLUE - Skin RED - Flesh GREEN-BLUE - Bone

BLISTER: Mixes between silicon (counter-clockwise) and germanium clipping (clockwise) which lend a different character to the overall fuzz sound.
Intermediate settings will lift the clipping and greatly increase output volume.

DEGREE: The fuzz or gain knob. Turning it up increases the overall gain and distortion. Lower gain settings will cause gating to kick in earlier.

pH: An unconventional but effective tone knob. Turning it counterclockwise, the mids are very scooped. Turning it clockwise flattens out the mids for morec onventional fuzz sounds.

AGONY: While it mainly functions as the volume knob, it also contributes to final stage gain. Play with the DEGREE and BLISTER knobs to find interesting gain/volume settings.

Power: 9-12V DC, 100 mA, uses a 2.1 mm DC jack with negative center (Boss-style pedal standard power supply)
Input Impedance: nom. 100k?, output Impedance: nom. less than1k?