Module
Number | Type of Module | Width | Description |
| 901 | VCO/LFO | 3 | Voltage Controlled Oscillator, can be used as LFO (Low Frequency Oscillator) or VCO |
| 901A | VCO driver | 1 | One volt per octave |
| 901B | VCO | 1 | The original Modular VCO. It makes a very rich sound but is known for it's instability |
| 901C | VCO output stage | | used on earlier modulars (2's and 3's) |
| 901D | VCO output stage | 3 | |
| 902 | VCA | 1 | (Voltage Controlled Amplifier) 2 signal ins, 2 outs, 3 CV (linear or exponential control voltage) ins
(a brochure for the 902) |
| 903 | white noise | 1 | an older module, used on some of the first systems |
| 903A | noise generator | 1 | Called "Random Signal Generator", this unit can output pink or white noise.
(a brochure for the 903A) |
| 904 | VCF | | Voltage Controlled Filter used on some of the first Moog Modulars |
| 904A | low-pass VCF | 2 | the famous 24dB-per-octave filter |
| 904B | high-pass VCF | 2 | |
| 904C | filter coupler | 2 | |
| 905 | spring reverb | 2 | This is a limited but effective spring reverberation unit. It is heard on Keith Emerson's "Trilogy" solos. |
| 907 | fixed filter bank | 4 | This filter bank appears originally on the Moog 10 and Moog 12. |
| 907A | fixed filter bank | 3 | This filter bank appears originally on the Moog 15 and Moog 35. |
| 909 | power supply | | used on the Moog 15 |
| 910 | power supply | 2 | This unit is not full Moog module height. It fits in the bottom of the rack only. |
| 911 | envelope generator | 1 | This is a full ADSR (Attack, Decay, Sustain, Release) envelope generator. Attack, Decay and Release is adjustable from 2ms to 10 seconds. |
| 912 | envelope follower | | |
| 914 | fixed filter bank | 4 | 12-band, 125Hz to 5kHz, with high and lowpass knobs |
| 920 | power supply | | |
| 921 | VCO | 2 | Voltage Controlled Oscillator with a range from 1.01Hz to 40kHz
(a brochure for the 921) |
| 921A | VCO driver | 1 | one volt per octave
(a brochure for the 921A and 921B) |
| 921B | VCO | 1 | This oscillator is said to be more stable than the 901B. It has a range of 1Hz to 40kHz.
(a brochure for the 921A and 921B) |
| 923 | noise, high-pass, and low-pass filter | 1 | |
| 928 | sample-and-hold | | This was a separate long, thin box, both versatile and effective. |
| 930 | power supply | | This was the power supply for the Moog 35 and Moog 55. It was wired to the CP8A power switch. |
| 950 | 49-note keyboard | | |
| 950A | (?) a controller | | |
| 950B | scale programmer | | This was used by Tomita. |
| 951 | 61-note keyboard | | |
| 952 | 49-note, duophonic keyboard | | |
| 955 | ribbon controller | | an earlier model of the 956 |
| 956 | ribbon controller | | |
| 958 | pedal controller | | early model |
| 959 | joystick controller | | This is a separate wedge-shaped hand-made rosewood box (beautiful, useful, and desirable) |
| 960 | sequencer | 8 | This is three rows of eight steps, with fully variable voltages. |
| 961 | sequencer interface | 3 | also converts voltage-trigger to S-trigger and vice-versa |
| 961CP | sequencer interface panel | | designed for the Moog 55 |
| 962 | sequencer switch | 1 | This switch is used to control how sequencer is set up. |
| 984 | 4X4 matrix mixer | | |
| 991 | filter and attenuator | | |
| 992 | control voltages | 1 | illuminated red or blue switches linked to the 904A |
| 993 | trigger/envelope | | illuminated yellow or green switches |
| 994 | jack multiples | 1 | This simple, but very useful, module is for duplicating voltages (to send more than one place). |
| 995 | attenuators | 1 | |
| 1120 | foot pedal | | |
| 1125 | sample-and-hold | | |
| 1130 | drum controller | | |
| 1131 | percussion controller | | |
| 1150 | ribbon controller | | This was a ribbon controller mounted on a long thin box. |
| 1630 | Bode Frequency Shifter | | This module was designed by Harald Bode and sold with Moog's modular systems. It is highly sought-after. |
| 1634 | pitch-to-voltage converter | | |
| 6401 | ring modulator | | |
| CP1 | CV (control voltage) and trigger outputs | | This was designed for the Moog 3P. |
| CP2 | CV and trigger outputs, and filters | | This unit is not full Moog module height. It fits in the bottom of the rack only. |
| CP3 | 4X1 mixer | | This unit is not full Moog module height. It fits in the bottom of the rack only. |
| CP3A | mixer | | This unit featured illuminated switches that were linked to the VCO's. This unit is not full Moog module height. It fits in the bottom of the rack only. |
| CP4 | CV and trigger outputs, attenuators, etc... | | This was designed for the Moog 1C. |
| CP4A | CV and trigger outputs | | This unit, designed for the Moog 35, is not full Moog module height. It fits in the bottom of the rack only. |
| CP5 | CV and trigger outputs | | This unit was designed for the "P" series Moog modulars. |
| CP6 | CV and trigger outputs, etc... | | This unit was designed for the "P" series Moog modulars. |
| CP7 | CV and trigger outputs, multiples, etc... | | This unit was designed for the "P" series Moog modulars. |
| CP8 | power switch, etc... | | This unit, designed for the Moog 2C and Moog 3C. |
| CP8A | power switch, etc... | | This unit, designed for the Moog 35 and Moog 55. |
| CP9 | power switch | | This unit, designed for the Moog 3P. |
| CP11 | mixer, triggers, outputs, etc... | | This unit, designed for the Moog 10. It has four-input mixer, multiples, attenuator, 2 control voltage and trigger outs, and two audio outputs. |
| CP35 | attenuators | | This unit, designed for the Moog 35, is not full Moog module height. It fits in the bottom of the rack only. |
