Excellent used condition Moog Minifooger MF Ring - tested and fully working on -9v and battery. Sounds incredible, especially when using the EXP/CV in.

I do not have the original box, but it will be well packaged and sent next day.

From the Moog website:

The MF Ring is an analog ring modulator that is based on the best selling Ring Mod in the world, the Moog MF-102. Its unique tone voicing circuit actually changes the behavior of the ring modulation, allowing for a wider range of modulated behaviors. Create anything from octaves and choral dissonance to harmonic undertones and synthesized lead lines. 

The expression pedal input provides hands-free control of the Freq control for sound sweeps, pitch shifting effects, and playing between two scales on the fly. Unlike other ring modulation pedals, the MF Ring can also be battery powered. Moog website:

SIGNAL PATH: 100% Analog

BYPASS TYPE: True Bypass

POWER: +9VDC

WEIGHT: 18oz (0.5kg)

ENCLOSURE: Cast aluminum

DIMENSIONS: D=5.75” (14.4 cm) W=3.25” (8.3 cm) H=2.25” (5.8 cm)

FREQUENCY CONTROL: Oscillator range is 90Hz - 1.5KHz nominal; Max with expression 12KHz