Modulair (Eurorack) system. Model 3000.
Brief description of most S3000 modules. A 3-unit AKA rack fits 5 regular-width (Eurorack) , 10 half-width or a combination of modules.
They are powered by regulated +15.0, 0, and -15.0 Volt supply. The modules have no rear cover, so they need a protective case or rack.
The module dimensions are similar, but not identical to Doepfer and Paia modules.
Synton starts with the common modules ( VCO, VCF, VCA EGR LFO). Later modules were created from names of famous instruments. like DMX and PPG.
Discrete ADSR with manual trigger button and LED.
Multiple, 4 cv out with potmeters
Curtis-based ADSR with four CV-inputs. Uses CEM3310
3-1 mixer with unity-gain input.
Half-size mixer with one unity-gain input and one variable invertible input. For adding vibrato to keyboard CV and other simple tasks.
State-variable 12 dB filter. One output is Band pass, the other has a control for low-notch-high pass. Uses CA3280
Uses a Curtis chip. Triangle, saw and variable pulse outputs, hard sync and PWM inputs. Uses CEM3340
Half-size binary pulse-divider with 2 / 4 / 8 outputs. Useful for making sub-octaves. Logic 0/10 volt output, so you may need to shift and attenuate.
Half-size LFO with reset-input. Variable waveform pulse and triangle/sawtooth outputs.
Line output amp
Mic/line input amp
trigger sequencer/ voltage controlled puls generator
4 channel de-multiplexer
Dual VCA with positive gain-offset controls. This can be used for feeding a sound to the output without an envelope while testing or tuning. Uses CA3280
Ring modulator, white/pink noise with level control, VLF noise with level control. Uses CA3080
3218 INV / SLR
Dual inverter with offset controls (also used as variable voltage source) and slew limiter with rise and fall controls. This can be used as simple AR envelope.
Dual LFO with VC speed. Square and triangle outputs. Uses Ca3080
3224 High-low pass 24 dB VCF
Uses two Curtis chips, one for high pass, the other low pass. Both are 4-pole 24 dB/octave VCF’s. There is a CV input to control low pass resonance. Uses CEM3320
3233 S&H / LFO
Sample and hold with clock and LFO.
3235 ENV / CPR
Envelope follower and comparator with reference level control.
Dual two input analog switch
KBM 35 Keyboard
44-key monophonic keyboard with touch pad rather than wheels. Scale control.
External power supply, Use 78GU and 79GU regulators