FM Operator Type-K
FM (2op) 8ch stereo output
ADPCM rompler 4ch in 6 rhythm sounds monaural output
DIP18
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YAMAHA PortaSound PSS-280
YAMAHA PortaSound PSS-290
YAMAHA PortaSound PSS-380
YAMAHA PortaSound PSS-390
YAMAHA PortaSound PSS-26