stereo to mono mixer

[carrejans]

Hi,

I want to make a pedal with two foot switches, so that I can choose which of both (or both together) input signals (coming from a stereo jack) are directed to the output.
Is my design correct?



thank you

[Kipper4]

if you want to choose both to go to the out your going to need a stereo out too unless im mistaken.

[carrejans]

The intention is to get them mixed together, when they are both selected.

[Kipper4]

I'm no expert at all and maybe i've missunderstood the drawering.
But your switching the tip to ground (sleeve) and on the other your switching the ring to ground.
i can see what your trying to acheive but i dont think it can be done like this. Now take that with a pinch of salt.
Someone will be along and put me right if i'm wrong.
and whats more im sure you could do all you have in the above drawering with one 3pdt switch even with led indicators.

[greaser_au]

Circuit is mostly fair enough... obviously DPDT switches are ok.    I'd suggest a 470R or 1k resistor between the input socket & the switches for each of the tip & ring contacts, though (passive mixing elements)

david

[Bill Mountain]

You will need some sort of passive or active mixing.  You may also want to think about polarity switching.