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Transistorized EHX™ Muff Fuzz™

Here is some information on the transistorized version of the electro-harmonix™ Muff Fuzz™.

• General Build Instructions
• Muff Fuzz Build Instructions
• Muff Fuzz Bill of Materials
• Muff Fuzz (Transistor) Schematic with slight modernization updates.
• Muff Fuzz (Transistor) Wiring Diagram and Parts Layout
• Muff Fuzz Ready-For-Transfer Printed Circuit Board Layout - For use only if you are a complete DIY person who wants to etch and drill your own PCB.  Otherwise, we recommend you ignore this PCB mask and buy the Ready-to-Solder Printed Circuit Board or Complete Kit from the links below.

Here is the schematic for the original transistor verison of the electro-harmonix Muff Fuzz.

• Muff Fuzz (Transistor) Schematic

Lava Rim 2

Here is a link to Aron Nelson's Lava Rim 2. He designed it after a Fuzz Face and Jordan Boss Tone, but it turned out to be a great modified version of the transitor Muff Fuzz!

• Lava Rim 2 Project based on the schematic from Aron Nelson's Stompbox Page

Would you like a Ready to Solder Circuit Board for this project? Note: If you buy the kit, the Ready-to-Solder Printed Circuit Board (RTS PCB) is included in the kit.  You do not need to purchase this Ready to Solder Circuit Printed Board if you buy the kit.

Op-amp Muff Fuzz

Here are some links to information and layouts for the op-amp version of the Muff Fuzz.

• Op-amp Muff Fuzz Schematic
• Op-amp Muff Fuzz Layout originally from lazyfinger.com
• Op-amp Muff Fuzz Ready-For-Transfer Printed Circuit Board Layout.
• Op-amp Muff Fuzz Schematic-Gus Smalley's Mods from Aron Nelson's Stompbox Page