These are the original 4 roms chips that got removed from a perfectly working 707, they were removed while installing the HKA rom chips. Now these are surplus to requirements. Great for a spares to future prof your own 707. The brain of the 707.
Roland TR707 Rhythm Composer PCM Drum Machine AC Adapter Manual Memory Cartridge
Roland TD-4 V-drums Sound Module Electric Drum
Roland TD-4 KP Spare Parts Module Pads Cymbals Kick Loom Clamp Choose Parts
Roland TD-4 Drum Kit Spare Parts | Pad Cymbal Pedal Module Cable Loom | Choose
Roland TD-4 Percussion Sound Module for V-Drums Power Supply and Snake - Tested
Roland TD-4 V-Drums Drum Sound Module w/ Trigger Cable AC Adapter Tested
