Yamaha SK-20 – 1979
Available for sale
800 €
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Polyphony
7-voice polysynth and string + Full FM organ + monosynth
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Oscillators
One VCO, two in polysynth section
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LFO
One with Sine waveform only (leslie simulator - 2 speed)
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Filter
Brilliance control, Resonant low-pass 12dB filter (non-self-oscillating)
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Envelopes
rocker switches for attack and sustain
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Effects
Vibrato, Tremolo and Ensemble effects for the organ and poly synth string sections.
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Keyboard
61 keys (122 keys on SK-50D)
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Memory
No user memory. 3-preset patches per section.
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Control
CV-Gate IN/OUT
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Date Produced
1979-1980