This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Friday, February 5, 2016

Blackout Effectors Fix'd Fuzz Deluxe

For #FuzzFriday, here's the Fix'd Fuzz from Blackout Effectors. Part Big Muff, part Bazz Fuss, part Fuzz Face, the Fix'd Fuzz uses the basic structure of the Big Muff, but replaces the 2 gain stages with a Bazz Fuss and a Fuzz Face-esque circuit. What makes it really interesting is that every stage of the circuit is switchable. This allows it to be anything from a boost to a full on fuzz machine of doom. The original version had the switching, but 2 of the controls as trimmers internally. The deluxe version, which is laid out below, has all control externally for maximum tweak-ability. Here's a schematic for reference.

Since all the switching can be confusing, here's wiring diagram for all those DPDTs.


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  2. I had to change the 3.9K resistor connected to Q1 to 390r and the 47k resistor to 10K to get the boost circuit working. Everything else works and sounds great.