Yamaha MU80 Tone Generator MiDI sound source Sound Module 100V

Yamaha MU500 XG 64-Voice Synthesizer Sound Module MIDI Tone Generator

YAMAHA MU-128 Sound Module Tone Generator W/AC Adapter [Very good]

Yamaha TG100 Tone Generator Vintage Midi Sound Module UNTESTED

Yamaha MU80 Tone Generator Sound Module MiDI sound source F/Japan AC100V

Yamaha MU90 Tone Generator MIDI Sound Module w/ Manual - Tested & Working

KORG NS5R Midi Sound Effect Module Synthesizer / With Power Cable / Working

Roland SC-55mkII SC-55mk2 New battery Tested w/ Power Supply / Made in Japan