Muff/Fuzz face pedal

[PedalSouldier]

Hello. I wanted to build a fuzz face circuit but I already have the big muff on my board. there is so much room in that pedal that I think I will simply add the small fuzz face circuit to the Muff pedal and have a switch between the two fuzz effects.

What would be the best way to switch between these two boards? just have a switch between the input and output of the circuits?

And help would be nice.

Thank you.

[Mark Hammer]

Is the intention to have two different fuzzes and tones available, or to have a pair of presets (i.e., different gain/level settings) available?  Not to take anything away from the FF, but there are innumerable mods to the BMP that permit very different tones and characters.

[George Moore]

 A dpdt wired for true bypass 'a jumper across the top' style is close to what you want,
From there [1 circuit wired for tru bypass], clip the bypass jumper wire and insert 2nd circuit there [minding input jack would go to input of circuit, output to output J].
ANother DPDT could then be wired to include or go around the 'bundle' if bypass-all is desired.