he Moog Polymoog Keyboard (280a) is an analog synthesizer released by Moog Music in 1975. It was one of the first polyphonic synthesizers and was capable of producing up to eight notes simultaneously. The Polymoog featured two oscillators, two envelope generators, two low-frequency oscillators, and a noise generator. It also featured a unique keyboard design that allowed for the playing of chords and arpeggios. The Polymoog was used by many prominent musicians, including Stevie Wonder, Tangerine Dream, and Yes.

MOOG POLYMOOG Keyboard 280a + Polypedal 285a + original manual / 1st hand / never moved / museum condition / notes remade perfect touch! revised and clean! POLYMOOG is the first MOOG polyphonic synthesizer released in the 70's Preset Sounds - 203a: Strings, Piano, Organ, Harpsichord, Funk, Clavi, Vibes, and Brass. 280a model adds: Vox Humana, Strings 2, Electric and Honky Tonk Pianos, Brass Chorus and a Rock Organ Polyphony - 71 notes Oscillators - 2 VCO's with sawtooth and pulse / square waveforms and pulse-width modulation LFO - Rate, Amount Attack Filter - Highpass, Highpass (203a model only), 3-band EQ Memory - Model 203a: 8 Preset + 1 User Model 280a: 14 presets Keyboard - 71 keys (velocity sensitive) Control - CV / Gate Weight - 82 pounds (37 Kg) Usage area Synthesizer
Usage Design/ Form Factor With Keys
Archetype Analogue (A)
Polyphony Voices 71 Multi Timbral Capacity
Monotimbral
Tone Generator / Sound Synthesis Synthesis Method Analog Subtractive Oscillator Type VCO (Voltage Controlled Oscillator) Oscillators per voice 2 Waveform/ Spectral form (main generator) Square Waveform/ Spectral form (main generator) Saw Programs/ Voices/ Timbres Single Voice Preset 14 Filter Voltage Controlled Filter (VCF)
High-pass Filter (HPF)
Low-pass Filter (LPF)
Band-pass Filter (BPF)
24dB
Amplifier Voltage Controlled Amplifier (VCA)
Modulation LFO: LFO Count 3 LFO Waveforms: Ramp Down
Equalizer: Bands 3 Keys Type: Manufacturer part code Pratt&Reed Velocity Sensitivity
Size 6 Number of Keys 71 External controllers: CV in 6 Audio out: Mono
Analogue: 1/4" (6.35mm) 1 Case/ body: Metal&wood
Color: Black
Production start 1978 Production end 1980

Owner's manual

Product specs