Controls
- LFO Amount
- adjusts the amount that the LFO output sweeps the carrier oscillator.
- Square/Sine
- chooses the LFO waveform.
- LFO Rate
- varies the LFO’s frequency from 0.1 Hz to 25 Hz.
- Drive
- adjusts the gain of the audio input.
- Modulator Mix
- crossfades continuously from unmodulated to modulated audio.
- Modulator Hi/Lo
- chooses between the low frequency carrier range (2 Hz to 130 Hz) and the high frequency carrier range (60 Hz to 4,000 Hz).
- Modulator Frequency
- varies the carrier frequency over a six-octave range.
Sockets
- Audio In
- accepts any instrument-level or line-level audio signal from -16 dBm to +4 dbm.
- LFO Rate CV
- accepts moogerfooger EP1 (or equivalent) expression pedals, or control voltages from two-circuit or three-circuit 1/4" jacks.
- LFO Amount CV
- accepts moogerfooger EP1 (or equivalent) expression pedals, or control voltages from two-circuit or three-circuit 1/4" jacks.
- Modulation Mix CV
- accepts moogerfooger EP1 (or equivalent) expression pedals, or control voltages from two-circuit or three-circuit 1/4" jacks.
- Modulation Freq CV
- accepts moogerfooger EP1 (or equivalent) expression pedals, or control voltages from two-circuit or three-circuit 1/4" jacks.
- Audio Out
- -4 dBm nominal output level.
- LFO Out
- delivers the LFO voltage for use by other voltage-controlled devices.
- Carrier In
- provides a means of applying an external signal to the ring modulator, in place of the carrier oscillator.
- Carrier Out
- delivers the carrier signal for use by other devices.
Information
Moog Music
The MF-102 Ring Modulator is an award winning effect designed by Bob Moog. It contains an analog Ring Modulator with a built in Carrier Oscillator and LFO. Used with guitars, basses, keyboards, samples, or recorded tracks, the MF-102 can create subtle, or completely over-the-top effects.
Uncontaminated by the digital world!
The MF-102 Ring Modulator is a direct descendant of the original Moog modular synthesizers. It contains three complete modular functions: a ring modulator, a voltage-controlled carrier oscillator, and voltage-contolled dual-waveform LFO. It can be used to process any instrument-level to line-level signal.
A ring modulator produces sum and difference frequencies between the audio input and a carrier oscillator. The ring modulator's LFO can be used to modulate the carrier frequency. The moogerfooger ring modulator can create effects ranging from subtle tremolo to harmonically rich distortion, gong-like sounds, sweeps, swoops, and divebombs. It can be subtle, or outlandish in it's use - you decide!
The moogerfooger ring modulator's control parameters are signal mix, carrier frequency, LFO rate, and LFO amount. All of the ring modulator's parameters can be controlled by the great feeling knobs that beg to be tweaked as well as with expression pedals or external control voltages. Panel switches select LFO waveform and carrier frequency range. 1/4" jacks are provided for audio input and output, pedal/control inputs, carrier input and carrier output. The heavy-duty yet smooth acting bypass switch allows tabletop or floor use.
Imagine that the ring modulator's carrier oscillator is producing a 500 Hz sine wave, and your input signal is a 100 Hz sine wave. The ring modulator's output will be a complex waveform. You will hear two pitches: 400 Hz and 600 Hz. You will not hear your original input or the carrier oscillator.
Features:
- FREQUENCY rotary control, which varies the carrier frequency over a six-octave range.
- RATE rotary control, which varies the LFO's frequency from 0.1 Hz to 25 Hz.
- LFO AMOUNT rotary control, which adjusts the amount that the LFO output sweeps the carrier oscillator.
- MIX rotary control, which crossfades continuously from unmodulated to modulated audio.
- DRIVE rotary control, which adjusts the gain of the audio input.
- SQUARE-SINE rocker switch, which chooses the LFO waveform.
- LO-HI rocker switch, which chooses between the low frequency carrier range (2 Hz to 130 Hz) and the high frequency carrier range (60 Hz to 4,000 Hz).
- LEVEL, a three-color LED that is used to set the DRIVE control.
- LFO, a LED that indicates the LFO rate.
- BYPASS, a two-color LED that tells whether the ring modulator is on or bypassed.
- ON/BYPASS, a rugged, smooth-acting stomp switch.
Jack Panel Features:
- AUDIO IN 1/4" phone jack - accepts any instrument-level or line-level audio signal from -16 dBm to +4 dbm.
- AUDIO OUT 1/4" phone jack - -4 dBm nominal output level. FREQUENCY, RATE, LFO AMOUNT, MIX, all of which are stereo 1/4" jacks that accept moogerfooger EP1 (or equivalent) expression pedals, or control voltages from two-circuit or three-circuit 1/4" jacks.
- AUX AUDIO IN - provides a means of applying an external signal to the ring modulator, in place of the carrier oscillator.
- LFO OUT jack - delivers the LFO voltage for use by other voltage-controlled devices.
- CARRIER OUT jack - delivers the carrier signal for use by other devices.
- +9V POWER INPUT jack - accepts standard 9 volt power adaptors (power adaptor included).
General Specifications:
- CASE: Black panel with hardwood sides - classic analog appearance.
- DIMENSIONS: 9" x 6" x 2-1/2"
- NET WEIGHT: 2 lb
- SHIPPING WEIGHT: 4 lb, including power adaptor and instruction manual.
Video
(2010-06-23) Moog MF102 Moogerfooger Ring Modulation: Looking For Some Odd Noise? by GearWire
(2010-06-23) Moog MF102 Moogerfooger Ring Modulator: Fiddling With The MF102 by GearWire
(2010-12-13) Electro Harmonix Deluxe Memory Man with Moog moogerfooger MF-102 Ring Modulator by simplexiammine
(2011-02-09) EHX Deluxe Memory Man, Moog MF-102 Ring Modulator, Red Witch Deluxe Moon Phaser by simplexiammine
(2011-03-23) Moog MF-102 And DigiTech Whammy: Saxophone Effects With Dengue Fever by GearWire
(2011-04-23) Moogerfooger MF102 Ring Modulator by GuitarGearComMx
(2011-04-23) Moogerfooger MF102 Ring Modulator with Bass by GuitarGearComMx
(2012-01-29) MOOG MF102 Ring Modulator by elswan64
(2012-03-06) Moog Moogerfooger MF102 Ring Mod as synth by Dirge Electronics
(2012-04-06) MOOG - MF-102 - Ring Modulator - Moogerfooger by Kayzer
(2012-04-07) MOOG - Ring Modulator MF-102 Moogerfooger and Strymon Timeline Delay by Kayzer
(2012-04-08) MOOG MF-102 Ring Modulator Moogerfooger and Eventide Space Reverb by Kayzer
(2012-06-05) Custom Copilot Fx Broadcast with 4 step sequencer controlling a moog ring modulator by Copilot FX
(2012-08-28) Mooger Fooger ring modulator on Conjugal Burns by PedalsAndEffects
(2014-03-25) Strymon - BigSky & Moog MF-102 Ring Modulator by Kayzer
(2014-05-25) Moog Ring Modulator And MF104M Analog Delay by Shnobel Tone
(2015-12-07) Moog Moogerfooger MF-102 Ring Modulator by PedalOfTheDay
(2017-05-13) FALL INTO THE PORTAL with the moogerfooger ring modular and the LimeTime Delay. And while you're at it save 15% on select noiseKICK FX pedals this weekend. Use code TONE15 www.reverb.com/shop/noisekickfx by NoiseKICK FX
(2017-10-11) EHX Black Russian Muff + Moog MF-102 Ring Mod Bass Demo by Fuzz Freaks
(2019-01-29) Moog Ring Mod Tuned to Riff's Root Note by Symbiosis Effects
(2019-02-24) Moog Ring Mod vs Eventide H9 by Symbiosis Effects
(2023-12-01) MOOGERFOOGER Ring Modulator | The G.O.A.T by Leon Todd
(2024-02-24) Warm Audio Ringerbringer vs Moog Moogerfooger MF-102 Ring Modulator - shoot-out! by Pedal Experiments
(2024-03-20) Moog MF-102 Well Used Ring Mod by Phosphene Audio
Reviews
myFXDB user reviews
2 reviews, average score of
| Date | User | Version | Score | Positive | Negative |
|---|---|---|---|---|---|
| 2017-04-05 | TODD TAMANEND CLARK | 8/10 | ... | ... |

