I'm going to build up a Wolfshirt, but really would like to have the octave switch as a footswitch (with an LED signalling when it's engaged). I've never adapted this sort of switch in this way...can anybody direct me to a diagram or tutorial about how to make this change? I'm guessing it's likely not terribly complicated, but I want to avoid making mistakes along the way.
You're right, it's not complicated! A DPDT stomp switch will work, but if you have a 3PDT you can use it, just ignore the 3rd column of lugs. Choose a current limiting resistor to set the desired brightness of your LED, usually somewhere between 2k and 8k does the trick. I assume you want LED on = octave on, that's what's shown here. If not, move the LED from lug 4 to lug 6.
I built this a few years ago, so, I might be remembering incorrectly. I remember considering this mod but decided against it because I think there is a volume change when the switch is engaged. You might want to check out the the Fulltone Ultimate Octave and see if this is a complaint. This is basically what you are describing.
Quote from: MarkL on August 10, 2022, 08:16:59 PM
I'm going to build up a Wolfshirt, but really would like to have the octave switch as a footswitch (with an LED signalling when it's engaged).
Another way to address the issue that Bio77 brought up is the Prescription Electronics Clean/Octave Blend, it's based on the Tone Machine but you can balance the levels if you make it with an Octave foot switch like you mentioned. I don't think anyone is selling PCBs right now, but I have made these and can post a vero layout if you want to give that a shot.