Amazing sounding VCO module from the ’70s Authentic reproduction of original ARP* 2600 circuitry VCO features 4 simultaneous waveforms: sine, triangle, saw and pulse VCO offers wide frequency control from 10 Hz to 10 kHz or 0.03 Hz to 30 Hz in LF mode PWM can be simultaneously controlled manually and via external CV input Switchable between LF (keyboard off) and Audio (keyboard on) Separate outputs for each waveform and 5 CV inputs for pitch control and PWM 8 controls and switches give you real-time access to all important parameters Eurorack specs: 16 HP, XX mA +12 V, XX mA -12 V Inputs Keyboard CV Type 1 x 3.5 mm TS jack,  DC coupled Impedance 100 kΩ, unbalanced CV range 10 V, 1 V/oct.  FM1 / 2 / 3 CV Type 3 x 3.5 mm TS jacks,  DC coupled Impedance 50 kΩ, unbalanced  CV range  10 V, 1 V/octave                   PWM CV Type  1 x 3.5 mm TS jack,  DC coupled  Impedance 75 kΩ, unbalanced CV range 10 V, typically 1 V/10%  Outputs TRI/SINE/SAW/PULSE Type 4 x 3.5 mm TS jacks,  DC coupled  Impedance 1 kΩ, unbalanced TRI level ±5 V  SINE level ±5 V SAW level 0 V / +10 V PULSE level 0 V / +10 V Controls Initial oscillator frequency fader Sets oscillator frequency (10 oct. range)  Fine tune knob Oscillator fine tune adjustment (±0.4 oct.)  Audio (Kybd on) / LF (Kybd off) slide switch Select audio band  (10 Hz to 10 kHz) or  LFO (0.03 Hz to 30 Hz)  FM 1 / 2 /3 faders Attenuate FM inputs  (-∞ to unity gain)  Pulse width fader Pulse width adjustment (10% to 90%)  PWM fader Pulse width  modulation attenuator  (-∞ to unity gain)  Power Power supply Eurorack  Current draw 140 mA (+12 V),  5 mA (-12 V)  Physical Dimensions (H x W x D) 129 x 81 x 42 mm  (5.08 x 3.19 x 1.65")  Rack units 16 HP Weight  0.15 kg (0.33 lbs)