VEM - Voice Expander Module

SEM Style Module

The VEM or Voice Expander Module provides
the Core Element for a synthesizer voice.

OB SEM Style Synth voice core.

AUDIO DEMOS
http://soundcloud.com/luna-modular-synthesizers/sets

The module is comprised of 3 sections;
VCO - Voltage Controlled Oscillator
VCF - Voltage Controlled Filter
VCA - Voltage Controlled Amplifier

The VCO is a full range oscillator sporting Saw and Pulse
waveforms.

The VCF is a 2pole Multi-Pass filter with self-oscillation at
high resonance. Classic SEM Style filter pass knob.
The VCA is clean and fast with zero CV feed through.

From Luna Modular Synthesizers

http://somaticcircuits.net/VEM1.html