Spst question.

[Wellu]

Hello.

Is it possible to make a pedal on/off switch with just a spst switch? Propable problem if you have to wire +9 and guitar input + to the same pin?

[kothoma]

No, this won't work.

You could switch the battery with a SPST, but in off-position you wouldn't get a bypassed signal, you'd get no guitar signal at all, and you'd get a loud pop while switching.
That's why nobody switches the battery.

For a bypass function you need at least a DPDT.

[Wellu]

Thanks kothoma, i thought that it probably wouldn't work.

[davent]

You could use the spst to control a relay or cmos switch that would then do all the signal routing but that's a whole other kettle of fish.
dave

[Wellu]

Oh yes! I have also thought about relay controls and been fascinated by it, however for the time being i need to go and get dpdt or 3pdt switch,  because i need to mail my effect out very soon.

[Wellu]

Any idea how to include also a led to dpdt switching? I know it would be easy just ti use a 3pdt - switches which i have plenty, but the effect i'm building is so ridicolously small, that any stompswitches won't fit.

[Suzukiscottie]

Any idea how to include also a led to dpdt switching?

Millennium bypass, simple enough, few components. That might fit within your space requirements.


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[Wellu]

Ok! That seems interesting! Have to try that.