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Cinder Hybrid Fuzz

Based On
Amptweaker Tight Fuzz
Effect Type
Transistor fuzz
Build Difficulty
Project Summary
A vintage-inspired fuzz/booster with several tone options, most notably a switch to select between germanium and silicon transistors.
Cinder Hybrid Fuzz printed circuit board

Printed Circuit Board

What's included?
PCB only. Build instructions and parts list can be viewed or downloaded from this page.


In stock

Complete Kit

Not yet available.
Kits are developed based on interest, so if you’d like to see one for this project, let us know.
Request Kit
5 people are interested.

Project overview

The Cinder Hybrid Fuzz is based on the Amptweaker Tight Fuzz, a combination silicon/germanium fuzz first released in 2012 and traced by Aion FX in 2023.

The Tight Fuzz shares several concepts with the other drive pedals in the Amptweaker lineup like the Tight Metal and Tight Drive, wrapping the vintage-inspired fuzz with James Brown’s signature pre-gain bass cut control as well as a heavily modified Big Muff-style tone control.

As with the Tight Metal, there are several toggle switch options, changing between silicon and germanium transistors, ‘60s/’70s EQ, and a sharp or smooth fuzz tone. All in all, it’s a great modernized take on the classic fuzz topologies.

The Cinder is based on our trace of the Tight Fuzz, which you can read about in the tracing journal. The only difference is the omission of the “SideTrak” effects loop that is engaged along with the pedal.