Currently building 5 Kosmo Modules, Just completed the 3x delay, on first test i ran the VCO into it, when it was in bypass mode the signal came through fine but when i flipped the bypass switch there was no sound, on inspection of the pcb i found a electrolytic capacitor round the wrong way. Managed to remove it and put in a new one, but this did not solve the issue.
I reflowed the solder on the components and tried again and there was noise but it sounds like white noise being delayed, there is no dry signal coming through. Garbarge mode can be heard and filtered with the top switch.
Any ideas what i should try to fix it?