MOOG Modular System 3C IIIC

via this auction

"Top cabinet:
2 960 Sequential Controller Step Sequencer (3 rows of eight steps with fully variable voltages)

1 961 Sequencer Interface Sequencer Interface incl. voltage-trigger to S-trigger and back

2 962 Sequential Switch is used to control how sequencer is set up

1 ? none not known

Middle Cabinet:
1 914 Fixed Filter Bank 12-band, 125 Hz to 5 kHz, with high-pass and low-pass knobs

4 902 Voltage Controlled Amplifier VCA: 2 inputs, 2 outputs, 3 CV inputs (linear or exponential control voltage) ins

4 911 Envelope Generator ADSR (Attack, Decay, Sustain, Release) Envelope Generator (Attack, Decay and Release is adjustable from 2 ms to 10 seconds)

1 992 Control Voltage illuminated red or blue switches linked to the 904A

1 904A Voltage Controlled Low Pass Filter 24 dB-per-octave, considered the classic Moog filter

1 904B Voltage Controlled High Pass Filter

1 904C Filter Coupler

1 993 Trigger and Envelope Voltages illuminated yellow or green switches

1 911A Dual Trigger Delay

1 912 Envelope Follower

Lower Cabinet:
3 921A Oscillator Driver VCO Driver (1 volt per octave)

9 921B Oscillator VCO (more stable than 901B)

1 921 Voltage Controlled Oscillator VCO (1.01 Hz to 40 kHz)

1 928 Sample Hold This was a separate long, thin box, both versatile and effective.

1 903A Random signal Generator Random Signal Generator (Output for White or Pink Noise)

1 984 Four Channel Mixer 4x4 Matrix Mixer

4 CP3A none Mixer (illuminated switches linked to the VCOs)

1 CP2 none CV and Trigger Outputs

1 CP8 none Power Switch

Shematic sheet" (click on each module when you get there).