Reverse Killswitch

[Guybrush]

Hi all.

I recently gave my Strat a makeover and part of the process was to install a killswitch in place of the tone knob I removed as below...




The killswitch works great and is wired like this...



I've no idea if it's possible but I'm now hoping to install a toggle switch that reverses the effect of the killswitch so that the signal is cut until the switch is pressed.

Just wondering if any of the many smarter than me people around here could show me how I might go about wiring this?

Thanks as always guys.

[jimilee]

You world need a normally closed switch rather than normally open.


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[matmosphere]

I'm not a strat guy, but that is a fine lookin machine

[Aentons]

 Never get out of the boat

[Guybrush]

You world need a normally closed switch rather than normally open.


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Ahh ok. And there's no way to add a toggle switch my normally open switch to make it normally closed? (I'm assuming not).

Edit: I found this diagram which uses a pull pot but I'm not sure how accurate it is. Can anyone make sense of it?

[mjg]

Yes that will work.  In one toggle position, the button is grounding the signal when pressed, which will kill the noise.  In the other Toggle position, the button is part of the circuit, so no signal gets through until the button is pressed. 

It might make a nice big pop noise when you engage the button...maybe a large value resistor over the pins of the button would help if that's an issue.  Maybe it won't be an issue.  I dunno.

[madbean]

Yes that will work.  In one toggle position, the button is grounding the signal when pressed, which will kill the noise.  In the other Toggle position, the button is part of the circuit, so no signal gets through until the button is pressed. 

It might make a nice big pop noise when you engage the button...maybe a large value resistor over the pins of the button would help if that's an issue.  Maybe it won't be an issue.  I dunno.

Yeah that's a pretty clever solution to use a single switch. In my experience, there's little to no pop with normally open to ground kill switches.

[Guybrush]

Wonderful news!

Thanks guys. I'll report back when it's done. Please don't hold your breath though 

Thanks again

Edit: last question (for now) - using the above wiring diagram and having the pot in the push position, would the signal pass as normal or would it be cut?
Thanks