New Projects, 2/19/2021

February 2021 new releases: 8 new projects (including a brand-new trace!)

Today we’ve got eight new projects for you to check out. The first four are rounding out our Catalinbread series of projects, including a brand-new trace of the Karma Suture (both silicon and germanium versions). Only a few more Catalinbread circuits left to tackle now!

There are also a few other stragglers: the Harmonic Percolator (which the Karma Suture was based on), a pair of Silicon Tone Bender variants, and a Yamaha overdrive from the ’80s.


Calliope Vintage Fuzz PCBCalliope – Catalinbread Karma Suture

An adaptation of the Interfax Harmonic Percolator, with additional controls for diode clipping and pregain bass. Silicon and germanium versions are both supported.

View Project → Tracing Journal →


Apollo Preamp Drive Mk. I PCBApollo Mk. I – Catalinbread WIIO

An adaptation of the Hiwatt amplifier used by Pete Townshend of The Who during their “Live at Leeds” performance from 1970.

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Apollo Preamp Drive Mk. II PCBApollo Mk. II – Catalinbread RAH

An adaptation of the custom Hiwatt amplifier used by Jimmy Page of Led Zeppelin during their “Royal Albert Hall” performance from 1970.

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Poseidon Silicon Fuzz PCBPoseidon – Catalinbread Katzenkönig

A hybrid circuit that combines a silicon Tone Bender with the diode clipping and tone control from the RAT Distortion.

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Particle Vintage Fuzz PCBParticle – Interfax Harmonic Percolator

An obscure and very unique germanium fuzz/drive circuit from the 1970s, famously used and revered by Steve Albini.

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Anubis Silicon Fuzz PCBAnubis – Basic Audio Scarab Deluxe

An adaptation of the classic Tone Bender Mk. II circuit using silicon transistors and a Big Muff-style tone control.

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Zircon Silicon Fuzz PCBZircon – Hot Silicon Tone Bender

Similar to the Anubis, another silicon adaptation of the Tone Bender Mk. II circuit.

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Naos Classic Overdrive PCBNaos – Yamaha OD-10MII Overdrive

A simple yet effective drive circuit that combines a Tube Screamer-style clipping section with a Big Muff-style tone control, it’s more transparent than a Tube Screamer with less of a midrange emphasis.

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