Pedal footswitches?

[groovybenny]

Hi guys,

Is it possible to:

Have a dual pedal (ie 2 different distortions,) but with 3 footswitches which one is bypass, one is distortion 1, and one is distortion 2 BUT only one is active at a time? No stacking, and when a footswitch is pressed it goes to that mode.

Cheers!

[Seljer]

Of course it's possible! But you can't do it with purely mechanical switches.

You would have to use momentary footswitches, some simple digital logic and some relays if you want true bypass (otherwise you can make use of ICs like the CD4053).
Have 2 flip flops (for example CD4013 which has 2 in the same package), wire one switch to set on flipflop and reset the other, the opposite for the other switch and the bypass switch resets both of them. Wire the flipflops up to the relays and you have it.

Another more simple option is momentary footswitches and latching relays and some diodes to route the switching signal.

[CodeMonk]

You can try this:  (not 100% sure if this is verified though).



D1 is bypass LED, D2 and D3 are "channel" switches.
On the left switch, the pads are connected up/down, the other switch is rotated 90 degrees.
And not sure If I have the LED's in properly.

[CodeMonk]

oops

[CurtisWCole]

I've made a True Bypass looper that does that with two switches. One is AB and the other is bypass. I used one 4pdt and a 3pdt. Having three switches seemed a bit redundant to me (and a bit more expensive). I use it to switch between a ds1 and a ts808. Works great for me.

Ps. Thanks to all the great minds in this forum. You guys are truly an asset.

Curtis

[groovybenny]

Thanks for the replies!

Basically I want a solution to be able to switch between each "channel," (channel being either bypass, distortion one, distortion two,) with only one footswitch press to change a channel. Like if this was a 3 channel amp. Pedals that use an A/B and a bypass switch require two presses sometimes, like if you're in "A," you then bypass, and then to go to "B" you need to press bypass, and then the A/B switch, if I'm not mistaken.

[Mark Hammer]

It's simpler than has been discussed so far.

What you are really doing is switching between two send/receive loops, except one of them is distortion A and the other is distortion B, instead of having a switch for distortion A / bypass and a switch for distortion B / bypass.

So, your input jack goes to your master bypass switch, and from there to your output jack.  That master switch selects whether you feed input to output directly (i.e., bypass everything) or feed input/output to the other switch.  If you feed them to the other switch, that switch selects between feeding them to A or B.

[groovybenny]

Wouldn't that have the problem that I said in the second half of my post though?

[slacker]

Yeah what Mark suggested, which is what I would have suggested won't do exactly what you want. Is it that much of an issue though? Like you said, the only thing it doesn't let you do with one press is go A > bypass > B or B > bypass > A. If you put the stomps close enough together, with a bit of practice it would be easy enough to stomp them both when necessary to preset A/B to whatever you wanted next  

To switch between bypass or A or B in any combination by only ever having to press one switch you'll need to do something similar to what Seljer said, you can't do it just with mechanical switches.
I don't remember ever seeing a project that will do what you want, there's plenty of info on how to do all the different elements on here and at places like geofex, but I think you'll have to put it all together yourself.

[groovybenny]

Putting the footswitches close together I can probably work with.

I'll have a think about it. Thanks for the help guys =)