I had to share this image sent by reader Gerald Good. (Thanks, man!)
It’s a handy stompbox wiring diagram that’ll work with all the stompbox project on this site, and most other simple circuits. It’s not the only way to do it — there are other good options, especially for wiring that diabolical 3PDT footswitch. (You’ll find some of them here.)
But I like the configuration Gerald chose to illustrate, because it’s the most idiot-proof. And everything I touch need serious idiot-proofing. I’m embarrassed to admit how many pedals I had to build before I had these basic connections committed to memory. The footswitch wiring alone nearly used to bring me to tears. I kept an ugly, hand-drawn diagram glued to a plank alongside my breadboard for ages.
This is nicer. Print it out and post it at your workbench!