Pedal selector, bypasser and dry/wet mixer in one

[hans h]

Hi all. I am new to this forum. I am Hans van Hateren from the Netherlands. For my first post I would like your opinions on the following layout/schematic:





The aim with this pedal is threefold:
1. Bypass all effects (dry position of sp3t switch, buffer can also be switched off in that case)
2. Use the effects (wet position of sp3t switch). Each pedal can be turned off or on using its DpDt switch. If this works I plan to remove the switches from my home-built pedals so they are always on and can be bypassed from the big box.
3. Mix dry and wet (middle position of the sp3t switch). I can change the ratio between dry and wet using the b1k pot. Input is from the wiper, dry output is from leg 1, leg 3 is connected to the effects.

Would this work (provided that I do not use phase-inverting pedals?).

Sincerely, Hans

[Ice-9]

Yes on a quick glance over, it looks like it will work. You may want to add some indication for active switches which could be done by using 3pdt switches for LED's.

[njkmonty]

do you have any experience with arduino?

[hans h]

@ Ice-9: thanks for verifying. I would like to keep te pedal without power source. The effects I would use would be noticeable when on anyways. The exception is the buffer pedal at the beginning. For that I might want to use a led indicator.

@ njkmonty: I do not have any experience with arduino. For what purpose would I need it? Prototyping?

Additionally: is an aluminium box conductive enough to not use grounding wires? Otherwise I would need a lot more wiring.

Furthermore: what would be the best resistance for the pot (now shown as b1k)? Somewhere on the internet I found the following: "do not use to high a resistance as it will load your signal". But, how low can I go?

Thanks in advance,

Hans

[njkmonty]

Build one of these.  I did. And didn't have a clue about arduino . For what your after to be quite simple and easy. It's a lot easier than you think