The GR-500 is Roland's first guitar synthesizer. It is controlled using a MIDI guitar with a 24-pin connector. The GS-500 guitar was specifically designed to work with the GR-500.
Year Released: 1977
Roland GR-500 and GS-500 Service Manual
Roland GS-500 / GR-500 Guitar Synthesizer & Controller (Serviced / Warranty) RARE! ($6,469.94)
Roland GR-500 70s ($2,200)
Roland GR500 Synth and GS500 Guitar Controller 1977 ($2,321.03)
80's ROLAND GR 500 GUITAR SYNTHESIZER MODULE EXTERNAL CY / GATE ($2,490.11)
1978 Roland Color Promotional Ad Framed Roland GR-500 Synthesizer Original ($24.99)
Dust Cover Pair for 24 Pin Roland & Ibanez Connector GR-300 GR-500 GR-700 ($15.50)
24 Pin Clone Guitar Synth Cable GR-300 GR-500 GR-700 for Roland & Ibanez 15 feet ($105)
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