3PDT Wiring Bypass PCB
3pdt_pcb_red3pdt_pcb_whiteMicro 3PDT Bypass PCB - Yellow3PDT Bypass PCB - Black

Micro 3PDT Bypass - Guitar Pedal PCB


Not sure where to start? Check our Resources section for more information on building your own guitar pedals.

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Project overview

At only 0.65” wide by 0.75” tall, the Aion Micro 3PDT Bypass is the smallest bypass wiring PCB available, only barely larger than a 3PDT stomp switch. This makes it perfect even for micro 1590A projects!

Wiring is dead simple: the pads labels match up to every 1590B Aion PCB project, so you can run the wires straight across and be done with it. Refer to the PDF documentation for a wiring diagram along with a description of each of the connections if you want to use this for non-Aion PCBs.

Note that the newer 125B-series PCBs (2018-present) include bypass boards integrated as snap-off sub-PCBs. The micro 3PDT bypass boards are not needed with them.