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Classic MIJ Long Chip Blue Label Boss DD-3 Digital Delay. These MIJ DD-3’s were basically the more highly sought after DD-2 with a new model number. I don’t believe there were any major changes to the circuit, other than adapting for the 9v standardized power, instead of the usual 12v power requirement you see on most MIJ Boss Pedals. Serial number dates to July 1987.
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