Problem with the Big muff op amp build

[Anonymous]

Hello !

I built the big muff op amp kit and i can’t manage to make it work. when i plug the jack in, the pedal makes some buzz, the volume, sustain and tone are working, since i can use them to change the tone of the buzz, but no sound comes from my guitar, i’m guessing i made an error with the input and output jack but i can’t see where (the stereo jack input confused me thought)

This is my first build so i’m not really confortable with all of this

(here’s a picture of my pcb)

[Billy]

You can check the stereo jack socket by inserting a jack and following round to the solder lugs like this

If you’re not using a battery you would leave the ring lug unconnected

 

[Anonymous]

Thanks for your answer ! i checked and left the ring lug unconnected but the problem remain the same ? if the problem doesn’t come from the jack socket, what could it be ??

[Billy]

Do you get bypass signal

What voltage do you get on the PCB 9v and ground pads

[Author]

Posts