“This Yamaha DX7 was quoted by Randy Waldman as the first one brought into the states from Japan way back when! This is his unit! It does have a low serial number! (13212) This DX7 was modded with a knob to switch to four banks! Also includes a Data Cartridge filled with more sounds! Pick new bank press a preset and you are playing a new sound!
All sounds play great and the sound cartridge has custom sounds. Only functional issue is two keys are down, but return springs are not missing. These two are not staying latched.”
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