Year Released: 1981
Keyboard: 49 keys
Polyphony: 10 notes
ROM: 10 sounds, 8 rhythms
Effects: sustain
Power Consumption: 15 watts
Dimensions: 840 mm x 290 mm x 90 mm
Weight: 6.1 kg
This keyboard has built-in 5-watt mono speaker(s).
Batteries: D x 6
Yamaha PS-10 and PS-20 Manual (1 of 3)
Yamaha PS-10 and PS-20 Manual (2 of 3)
Yamaha PS-10 and PS-20 Manual (3 of 3)
Yamaha PS-20 Automatic Bass Chord System 1981 - White ($282.44)
Yamaha PS-20 ($224.83)
Yamaha PS-20 Automatic Bass Chord System 1981 - White ($152.01)
Yamaha PS-20 Automatic Bass Chord System 1981 - White ($197.71)
Yamaha PS-20 ($190.93)
Yamaha PS-20 Automatic Bass Chord System 1981 - White ($257.59)
Yamaha PS-30 (same as PS-20) Automatic Bass Chord System 1981 - White ($246.86)
Yamaha Portatone PS-35 / PS-35S Service Manual [Three Wave Music] ($12)
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