The Harmonic Percolator is a highly sought-after pedal known for its unique tone. It is often debated whether it falls under the category of overdrive or distortion. The pedal is based on the Interfax Harmonic Percolator and has been updated in August 2022.The pedal features the same 2N404 transistors used in the original units, which are known for their vintage mojo. The pots are board-mounted for minimal wiring and easy enclosure mounting. Clipping options have been added to the pedal, allowing for different tones. The kit comes with germanium diodes as standard, but a toggle switch can be added to select a second set of diodes (1N4148 and 3mm red LEDs).For those looking to experiment further, a three-way on-off-on toggle switch can be added to have the circuit run with no clipping at all in the center position, providing a boosty sound. Lastly, there is an option to choose between the original trace values or the values reportedly used in Steve Albini’s personal unit, allowing users to tailor the circuit to their preferences.

Summary created by AI from the original source.