MS590

Semi-Modular Synth Voice

The Synth is made up of a pre-patched combination of:

CEM3340 Based VCO
- Triangle, Saw and Pulse waveforms with mix
- FM and PWM cv attenuator
- VCOMOD switchable between Triangle LFO and VCA envelope.

Dual 12dB Filter
- Input switching between LP/HP or Both
- Self oscillating resonance
- VCFMOD switchable between Triangle LFO and VCF envelope.

Dual VCA
- VCF2 normalled to VCA1
- VCA output normalled to input 1 of the top attenuator channel
- VCA envelope normally to both CV controls

LFO
- Rate control from low frequency to audio range
- Shape control for PW on the square wave, blends between ramp and sawtooth for the
triangle

Dual Cycling AD Envelope
- Trig and gate inputs for both
- 5V output
- Cycle switch for each channel

Overall the synth has 34 Patch Points arranged in the following order, top to bottom.

Attenuator Channel
- 2 inputs with Level control, 2 identical output jacks. (Normalled as master volume)

Main patch points

EXT, TRI, SAW, PULSE, MIX, V/Oct
VCFMOD, VCOMOD, PW, FM, LFOSQR, LFOTRI
VCF1IN, VCF1CV, VCF1OUT, VCF2IN, VCF2CV, VCF2OUT
VCA1IN, VCA1CV, VCA1OUT, VCA2IN, VCA2CV, VCA2OUT
TRIG1, GATE1, VCAENV, TRIG2, GATE2, VCFENV