New PCBs + 20% off through Monday, March 22

SPRING SALE: 20% off all PCBs through Monday, plus 9 new (old) projects

Spring Sale

PCBs are 20% off from now through the end of the day Monday, March 22. No coupon is necessary – the discount will be taken automatically at checkout.

New projects

We’ve got a brand-new project for the Ibanez “Narrow Box” Tube Screamer, the extremely rare first version of the TS-808 with two dual op-amps instead of one. It doesn’t sound too different from a stock Tube Screamer, but it’s a great project for beginners as well as anyone who wants some extra vintage flavor. We traced this one ourselves and will post a tracing log at some point.

Alongside the TS-808, we’re also updating eight of our legacy projects to the 125B platform. Less than five to go now!

Stratosphere Classic Overdrive - Ibanez TS-808 Narrow Box PCBStratosphere – TS-808 Narrow Box

A replica of the very first Tube Screamer from 1979 which used two dual op-amps instead of one.

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Flare Fuzz Machine - ZVEX Fuzz FactoryFlare – ZVEX Fuzz Factory

A glitchy silicon/germanium hybrid fuzz known for its dizzying array of controls and untamed sounds.

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Cirrus Dynamic Overdrive - Ibanez ST-9 Super Tube Screamer PCBCirrus – Ibanez ST-9 Super Tube Screamer PCB

An updated version of the Tube Screamer featuring a frequency-adjustable midrange boost that can be placed either before or after the drive stage.

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Nimbus Dynamic Overdrive - Maxon OD-820 Overdrive ProNimbus – OD-820 Overdrive Pro

A modern reimagining of the classic Tube Screamer circuit, featuring a dual drive/blend control adapted from the Klon Centaur.

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Crescent Amp Distortion - MI Audio Crunch Box PCBCrescent – MI Audio Crunch Box

A Marshall-like distortion pedal noted for its high-gain “stack of amps” tone.

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Parhelion Vintage Overdrive - Boss OD-1 OverDrive PCBParhelion – Boss OD-1 OverDrive

A precursor to the Tube Screamer, known for being the first overdrive effect to utilize diodes in a negative-feedback arrangement for clipping purposes.

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Astra Silicon Fuzz - Astrotone Fuzz PCBAstra – Astrotone Fuzz

An early silicon fuzz from 1966 that was also sold as the Sam Ash Fuzzz Boxx. One of the first drive circuits to include a tone control.

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Cumulus Vintage Overdrive - Ibanez OD-855 Overdrive II PCBCumulus – Ibanez OD-855 Overdrive II

An early overdrive circuit inspired by the Distortion+, but with the first appearance of the tone control that would later be used for the Tube Screamer.

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Quark Vintage Overdrive - Maxon OD-880 Overdrive/Soft Distortion PCBQuark – Maxon OD-880

An early overdrive circuit inspired by the MXR Distortion+, but incorporating a few changes that would later evolve into the Tube Screamer a few years later.

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