Ramp-core based VCO with simultaneous rising/falling sawtooth, triangle, sine and pulse waveforms.

This is a very good sounding VCO. The oscillator core is a ramp wave, the VCO generates five waves simultaneously, features linear FM, three selectable frequency ranges and a ten-turn potentiometer for super exact tuning.

A highlight of this oscillator module is the flexible sync. A very unusual feature is the possibility to set the synchronisation Threshold, allowing for a smooth transition from no sync over soft sync to hard sync which generates really extraordinary harmonic structures. Surprisingly this parameter is voltage controllable and the input is even equipped with a polarizer.
The combination of simultaneous modulation of pulse width and sync threshold brings forth very interesting results which you certainly haven’t heard before.

Features:

Ramp Core VCO with rising/falling sawtooth, pulse, triangle and sine waveshape outputs

•  V/Oct. CV input for exponential frequency modulation
• 2x exponential modulation CV input with manual controllable amount
• Input for linear frequency modulation
• manual controllable amount of frequency modulation
• Synchronisation input
• voltage controlled continuous threshold of synchronisation (no sync soft sync hard sync core lock)
• polarized attenuator for voltage controlled continuous threshold of synchronisation
• manual and voltage controlled pulse width modulation
• high frequency range, switchable between overlapping low, mid and high pitch areas
• tune: 10-turn precision potentiometer with scale knob

Spec:

• 16HP wide
• current draw: 40mA at +12V and 35mA at -12V