1v/oct Voltage controled oscillator using the CEM3340 IC that includes Sawtooth, Triangle, Pulse outputs, as well as PWM and hard and soft sync inputs. 

1v/oct Voltage controled oscillator using the CEM3340 IC that includes Sawtooth, Triangle, Pulse outputs, as well as PWM and hard and soft sync inputs. 

 

The pink wire in between the IC's represents where you must break the connections of the PCB board.