Installing a Copper Clad fuzz in a guitar with a PedalPCB board

[BuddytheReow]

I think the "pop" is the powering on of the circuit? Pedals are normally "always on" when DC is plugged in

 

[falco_femoralis]

^ I think it is too. My guitar had a pop when I turned on the switch when it was wired like this. You could try wiring it with the switch on the ground side, and such that the input of the PCB is grounded when it's off. I'm wondering if you would also need coupling caps as well

 

[falco_femoralis]

Try this

the idea being that grounding the input when the effect is off will allow the caps to discharge into ground. But I'm not sure how the PCB will like having its ground lifted. A 4pdt switch would allow for power application as well as grounding when off. But try it this way and see how it works

 

[ragamuffin]

I would add a small cap from input to ground, 1n or so, to get rid of the radio signals and hiss this circuit tends to pick up.

So I have a 1n cap, where exactly would I be putting it? From the signal input on the effect board to ground?

 

[ragamuffin]

Do you have a volt meter? Can you measure for DC across R5 and the pulldown resistor we installed over the vol pot?

I do have a multimeter, I should be able to check that tonight or tomorrow

 

[ragamuffin]

Do you have a volt meter? Can you measure for DC across R5 and the pulldown resistor we installed over the vol pot?

I'm getting -1.3mV across R5, zero on the volume pot pulldown

 

[ragamuffin]

Try this View attachment 98157

the idea being that grounding the input when the effect is off will allow the caps to discharge into ground. But I'm not sure how the PCB will like having its ground lifted. A 4pdt switch would allow for power application as well as grounding when off. But try it this way and see how it works

I followed this diagram and it's working with minimal pop! Thanks so much!

 

[falco_femoralis]

So I have a 1n cap, where exactly would I be putting it? From the signal input on the effect board to ground?

What is likely happening is the electrolytic caps in C3 and possibly C1 are leaking DC voltage to ground and causing the pop. Elec caps leak more than others. This means they let DC thru when they shouldn't. If you want to experiment a little, find a 2.5uf film, MLCC, or tantalum cap and install that instead of C3. If you use a tant, just make sure to get the polarity right.

 

[andare]

So I have a 1n cap, where exactly would I be putting it? From the signal input on the effect board to ground?

Yes, first component in the circuit and going to ground. It just takes some high end off, including radio and hiss, if you have them. It won't solve your popping issue, however.