LEDs to DPDT Question

[VanWhy]

For the Acetylene Overdrive, I like the original pedal has an LED lit for either side of the headroom switch when selected. Is it possible to add this to the DPDT switch that gets installed on the board? Is it as simple as Cathode of LED to end lug, anode (with CLR) to 9V? And vice versa on the other side. Or is this not possible with a DPDT on this circuit?

 

[Brett]

It's not going to be possible with the on-board DPDT. You could wire a 3PDT ON-ON switch and accomplish what you're after.

Is it as simple as Cathode of LED to end lug, anode (with CLR) to 9V?

Going the wired 3PDT route, this should work as long as you wire the center lug to ground.

 

[VanWhy]

It's not going to be possible with the on-board DPDT. You could wire a 3PDT ON-ON switch and accomplish what you're after.


Going the wired 3PDT route, this should work as long as you wire the center lug to ground.

Ah, okay. So, I would just be using the 3rd 'row' of the 3PDT for the LED's. Gotcha. Thanks!

 

[jwin615]

Yep. Use common anode and always switch ground.
That said, one side of that switch(A side) toggles ground so you may be able to incorporate a bicolor led on that leg. It may introduce popping, not sure.