A/B switch - this allows you to use one input into two outputs or two inputs into one output, e.g. one guitar selects… | Guitar pedals, Diy guitar pedal, Guitar diy
ABY-box with buffer/phase flip issue
DIY AB not Y | TalkBass.com
Building an Expression pedal A/B Switcher. Can you tell me if this is the correct way to wire it. : r/diypedals