EDIT: See the next post, this issue is now fixed.

Finished my weird sound generator kit over the weekend, and it was one of those soul crushing moments in electronics where you finish the meticulous soldering and excitedly plug it in and it makes no sound at all.

I had a quick poke around and was actually able to make it make a sound, but I’m somewhat at a lose as to the reason.

If I short point A on the switch, to B the ground (I put all my ground down onto the plug since it was bigger than the location on the pot in this diagram. Anyway, when grounded, it makes weird sounds, but the left “Oddness Filter” doesn’t do anything and it seems like most of the pots in Voice A don’t work. So clearly I’m just by passing something.

I reheated all the points in pcb and no difference. I need to double check all my capacitors are the right way round, and my resistors are in the correct places. Beyond that I’m at a lose. I’ll take some pictures of the boards in case someone can see any obvious issues.