General Guitar Gadgets is the best DIY stompbox site on the internet! We feature projects, kits and ready-to-solder PCBs.

Heavy Duty Raw Fuzz Tone.  This project now includes a transparent booster stage on the output to greatly increase the volume output without altering the sound of the fuzz.

• General Build Instructions
• Shin Ei™ Companion Fuzz™ Build Instructions
• Shin Ei™ Companion Fuzz™ Bill of Materials
• Shin Ei™ Companion Fuzz™ Schematic (Volume Boost Updates) 
• Shin Ei™ Companion Fuzz™ Layout/Wiring Diagram
• Shin Ei™ Companion 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.

• Original Shin Ei™ Companion Fuzz™ Schematic (for Reference)

Buy a SECF Complete Kit. Includes all the parts and materials you need to build one, all for about the price you would pay for a PCB and parts.

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.