BP-3 #009

The BP-3 is based on the Harmonic Percolator. The turret board design is my original v2 layout with improved power filtering and reverse polarity protection. The BP-3 also comes with three different clipping modes for more tonal possibilities - germanium, silicon, and diode lift.

The BP-3 is technically a fuzz, but it can also sound like a warm distortion, or even sparkly boost. Left knob is HARMONICS - this adjusts the amount of input gain driving the transistors, increasing the amount of fuzz as you turn it up. Right knob is BALANCE - this adjusts the volume output.

The BP-3 has three modes of operation - Silicon clipping, germanium clipping, and diode lift.

TOGGLE UP engages a pair of silicon Avalanche Sinterglass diodes. Articulate with a beautiful crunch.

TOGGLE DOWN engages a pair of germanium D9K diodes. Warm clipping with a nice fatness in the lower frequencies.

TOGGLE MIDDLE removes all diodes from the circuit. This increases volume and dynamics. Lift mode can also be a really good sounding boost. Turn the Harmonics (gain) knob all the way counter clockwise and then clockwise just until you hear signal. Then adjust the Balance (volume) to taste.

FEATURES INCLUDE:

- 1x Soviet MP21D (Q1)
- 1x Micro Electronics 2N3565 (Q2)
- 2x D9K Ge clipping diodes
- 2x Avalanche Sinterglass Si clipping diodes
- NOS capacitors
- 1/2 Watt metal film resistors
- Carling toggle switch
- Alpha potentiometers
- Switchcraft 1/4" jacks
- Lumberg DC jack - 9v center negative
- Premium machined aluminum knobs
- Fender style lamp jewel power indicator - Violet
- GØRVA Design true bypass foot switch
- GØRVA Design S90 enclosure - purple and green, depending on the angle