From the Seller:
You do have the ICs oriented correctly? ICs 2 3 4 and 5 are facing opposite direction from IC 1 and 6. Let me know.
I think you may be off in following the audio path. The audio splits after IC1 and goes with a clean sound to R27 and the other split goes to C2 and R7 to go thru the 4 stage phasing process.( thru ICs 2, 3 4 and 5), you should hear the phasing warble getting more intense on Pins 2 and output pin 6 of those ICs. Then the clean and warbled sounds are mixed in the pnp transistor stage just before output.
You won't hear any sound anywhere on the FET Pins as they are there for the sole purpose to fluctuate the current going into the phasing ICs at whatever rate the LFO is set to be (LFO being the circuitry around IC6 and controlled by pot R21). SO...if you are not getting any sound on the left side, not even to pin 2 of IC2, you would need to find out what's happening to the sound between pin 6 of IC 1 and pin 2 of IC2
You do have the ICs oriented correctly? ICs 2 3 4 and 5 are facing opposite direction from IC 1 and 6. Let me know.
I think you may be off in following the audio path. The audio splits after IC1 and goes with a clean sound to R27 and the other split goes to C2 and R7 to go thru the 4 stage phasing process.( thru ICs 2, 3 4 and 5), you should hear the phasing warble getting more intense on Pins 2 and output pin 6 of those ICs. Then the clean and warbled sounds are mixed in the pnp transistor stage just before output.
You won't hear any sound anywhere on the FET Pins as they are there for the sole purpose to fluctuate the current going into the phasing ICs at whatever rate the LFO is set to be (LFO being the circuitry around IC6 and controlled by pot R21). SO...if you are not getting any sound on the left side, not even to pin 2 of IC2, you would need to find out what's happening to the sound between pin 6 of IC 1 and pin 2 of IC2