DIY AB Switch for single input stereo pedals ground loop and pop concerns

[toostomped]

Hi all -

I am hoping for some advice before I plug in the soldering iron.

Here is my pedal purpose description:
I have 2 stereo pedals that only have 1 input and would like to toggle between them with a stomp switch so they would connect into my boss dd-7 stereo delay. No leds needed.
My attached diagram shows what I am hoping to accomplish, but I am not sure if I am going to run into "thump" or "pop" issues when switching, or if I need to address any ground loop issues.

I thank you in advance for any help you may be able to provide.

[PRR]

Welcome.

Looks OK to me. Let's see if anybody (dis)agrees before you hot-up that iron.

BTW FYI-- that is a triple pole double throw switch.

[toostomped]

Thanks much for your reply. You are correct... I meant 3pdt (just fixed the diagram). I was am mostly concerned about wiring all the ground terminals together and creating ground loop hum (although I think that may only apply to the power going to the pedals being daisy chained). I will see if anyone else chimes in before the tin gets melting. Thanks again. Enjoy the rest of the holiday weekend!

[karis12]

You might need pull-down resistors for the Guitar out A and B jacks - I built a similar (mono) switcher in the past, and there was a popping sound when I stepped on the switch. You can solder 10Meg resistors across the tip and sleeve lugs to prevent this.

If you have access to a 4PDT, you can eliminate the need for the resistors by using the extra pole to connect one Out to ground when the other makes contact with the Guitar In.

[toostomped]

Thanks for the "pop" workarounds. I have created a 4PDT diagram that I think illustrates your suggestion. I have used the 4th pole to alternately connect the two guitar outs to ground. Just wanted to make sure I wasn't supposed to deal with the "left" and "right" outs instead. Thanks again. Best regards.

PS - If anyone else would like to comment, I am more than happy to welcome more cooks into the kitchen.