Particle Accelerator – DIY PCB


This is a PCB set for building your own Particle Accelerator preamp. This is not a beginner project, so if you’ve never built a pedal before, then this isn’t for you.

I’ve tried to make this as affordable and as easy to assemble as possible, but this is a high-voltage circuit and requires special care in assembly, testing, and use. Sushi Box FX is not responsible for any damage or injury caused by improper handling, assembly, or use of this circuit.

Particle Accelerator is based on the Alembic F-2B, which is in turn based on the preamp of the Fender Dual Showman. It works great for guitar or bass and can be run clean or you can crank the gain and get a little dirt out of it. If you want it to stay clean you can use a lower gain tube like a 12AT7, 12AY7, or 12AU7 based on your taste.

Each PCB also includes a “SUSHI SWITCH L” 3PDT footswitch PCB and a “12AX7-EZ90” PCB for mounting the tube socket. A pre-drilled enclosure is available for an additional cost.

You can find the build document with the BOM, schematics, and enclosure drill guide here.


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