The Catalinbread Karma Suture is a pedal that was released in 2014 and is based on the Interfax Harmonic Percolator. However, the Karma Suture has several circuit changes that make it its own unique effect rather than a straight clone. It features additional controls for diode clipping and pre-gain bass.

In 2016, Catalinbread released a silicon version of the Karma Suture, which has different part changes from the original germanium version. While the framework of the schematic is similar, the silicon version has a completely different sound.

The Calliope Vintage Fuzz is an adaptation of the Catalinbread Karma Suture, both in germanium and silicon versions. It was traced by Aion FX in 2021 and supports both versions on the PCB. The default parts list is for the germanium version, but alternate values are provided for the silicon version. The Calliope Vintage Fuzz does not have any modifications or changes to the circuit other than the inclusion of additional transistor footprints on the PCB.

Aion FX also offers the Harmonic Percolator as the Particle Vintage Fuzz, which is another adaptation of the original Interfax design.

Summary created by AI from the original source.