ADDAC System - 701 VC Oscillator V2

This is our new VCO; we discontinued our ADDAC701 VCO a few years back and since then we’ve been wanting to release a more stable version with better pitch tracking, increasing pitch reliability, and further minimizing the detuning issues of analog VCO’s.

For this new revision we chose to use the modern version of the CEM3340 ic from CoolAudio and add the triangle to sine circuitry of our previous VCO. This new version is extremely stable over 7 octaves.

We also added a new Mix section which allows mixing of all waveforms controlled by 3 knobs SIN/TRI, MIX and SAW/RECT.

Features:
• Frequency knob with 6 octave range
• Fine Tune knob with 12 semitone range
• Octave switch with 6 octave range
• 1v/octave cv input
• Linear FM cv input with attenuator
• LFO/VCO switch sets overall frequency range
• Soft/Off/Hard Sync switch
• Pulse Width control with initial knob and cv input with attenuator
• SINE, TRIANGLE, SAW and PULSE outputs
• Mix output controlled by 3 knobs SIN/TRI, MIX and SAW/RECT.

DIY-Kit-Type:
SMD-Kit-2. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. It includes SMD and through-hole parts! For build guide, more info, videos etc. please check the buttons below.