vintage Vintage JVC RC-770JW Boombox Portable Radio Cassette Player For Parts/Restore September 29, 2024 admin Look closely at the pictures to see the condition. Vintage JVC RC-770JW Boombox Portable Radio Cassette Player – For Parts/Restore. Tape player probably needs new belts. Knob pots crackle a bit. This one would be good to restore.