This Pedal is currently available.
Harmonic Percolator based fuzz/overdrive
HP-2 is a distortion device, based on the Harmonic Percolator. A genuinely unusual design that is instantly recognizable. Known as a sonic doomsday device, but can easily be dialed down to add just a touch of harmonic richness. Harmonics (H) controls the input level and Balance (B) controls the output level. Rocker switches in and out the clipping section. Switch left for 1970s. Switch right for absolute destruction.
Note: Either control will cut the signal when fully CCW.
Uses standard 9V center negative power. No battery clip. Isolated power is recommended.