A switch for a foot switch.

[Bieling3]

I have a Madbean Mudbunny Big Muff clone I'm finally getting around to housing. I currently have a toggle switch for germanium/silicon diode clipping and a SPDT latching foot switch to go from scooped mids to boosted mids. Unfortunately I only have room for two footswitches on the housing I'm using.

I'd like to make both of these functions footswitchable from the same footswitch. I'd like a toggle switch to select whether the footswitch switches the mids or switches the diodes.

*What would be the best foot switch to accomplish this?
*How would you wire it up?
*Is there an alternative or obstacles I'm not thinking of?

[armdnrdy]

I currently have a toggle switch for germanium/silicon diode clipping and a SPDT latching foot switch to go from scooped mids to boosted mids. 

I'd like to make both of these functions footswitchable from the same footswitch. I'd like a toggle switch to select whether the footswitch switches the mids or switches the diodes.

Do you have a drawing of the existing switching?

[gcme93]

The main issue is that you'll need a default for each.

- When switching mids, the default is germanium diodes

- When switching diodes, the default is scooped mids

If you're happy with that, I think you can sort something out. It may need a DPDT toggle switch, but let me know if this is going to be an issue


George

*EDIT - one way around this, is to have it controlled by two separate latching relays. That way, the setting will stay on whatever it was last left on. However, this will take up a bit of space, and it sounds like a smallish enclosure...

[Bieling3]

The existing switching is basically like this:





The caps are on a SPDT footswitch though. Ideally I'd like to change the set up to rotary switches for both the caps and diodes. Having a default setting is fine I also have one 4dpdt foot switch as well if something like that is needed.



The housing is rather large, 5" wide by 7" length. Set up to mimic a Russian Muff enclosure somewhat. With my big clumsy feet 2 switches within 5" is the max. Please ignore the extra holes from the scrap sheet metal I'm using, those are getting patched with aluminum flashing and jb weld, then the whole thing is being done in black hammerite with white chicken head knobs.

[Bieling3]

Ha, now you got me up at 5 in the morning watch youtube videos on relay logic...

[slacker]

I can see a way to do it by adding a dpdt stomp and a dpdt toggle to select what the stomp controls, it's a lot of wiring though. I draw up a diagram later.

[gcme93]

Same as Slacker (who I'm sure would have drawn this up much more neatly!),

Relays wouldn't be worth the hassel at all, there's far too much surplus circuitry.



In this solution, Having the DPDT toggle switch in one direction has the "default" diode pair always in use, and the stomp switch changes which cap is in use. With the switch in the other direction, the "default" cap is always in use and you choose between the two diode pairs.

Let me know if you have any questions/problems!

George

EDIT - just read the part about a rotary switch. I'm pretty sure if you had a four way rotary switch and a DPDT you could have the option of choosing:

1 - default as germ diodes and switching caps
2 - default as silicon diodes and switching caps
3 - default cap A and switching diodes
4 - default cap B and switching diodes

If you can get hold of a four way rotary switch and want to do it like this then let me know and I'll try and work it out!

[slacker]

That's pretty much what I had in mind except keeping the existing toggles like this.



Flip the DPDT toggle one way and the stomp switches between diodes and the existing cap toggle switches between caps. Flip he DPDT the other way and the stomp selects between caps and the existing diode toggle switches between diodes.
You could replace the cap and diode toggles with a DPDT toggle to reduce the switch count.

[Bieling3]

The last pic I uploaded was a little fuzzy... but here is one that shows what I have to work with for rotary switches:



Any good ideas on how to wire a couple of these into the mix?

[gcme93]

So these are three way switches yes? What would you like each of the three switches to do?

[Bieling3]

Looks like I could have germanium/Silicon/No-diodes & scooped/flat/boosted mids???

[Bieling3]

Would something like this work?

[Bieling3]

Electronics guy at work sez yes. Then again he is more of a building maint. dude. ANyone hear see any issues with my mockup

[gcme93]

I'm afriad I've never used rotary switches and have no idea how the pinout of one of those things works. Is it one common on each side of the switch, and three different points to switch to on each side? Kindof like a Dual Pole Triple Throw?

[Bieling3]

I believe so... I'm starting to think they shouldn't be paired up on each side now, just one on each side set opposite from the other.