Hello!
In the build guide the voltage at pin 5 of U32 should be -15V. Mine is -13V. All resistor values are correct in that section of the circuit. The correct voltage is getting to the -V (pin 12). Just checking around the other components - what should the voltage be either side of the two 1n4148s (D70 & D71)? I'm seeing -15V / -13.5V (either side).
Thanks,
Neil