Apollo Command Module (Block II) Data Modulator built by Motorola, measuring approximately 8.5″ x 4.75″ x 4″, with a tag on the end reading: "Item Name: Data Modulator, NR/SD Cont. No: ME478-0087-0002, Mfrs Serno: 94990 000 A202, Mfrs Part No: 01-P10233B001…Date of Mfr: 6/70." A very light red stamp, "S/C 112," appears below the Motorola manufacturer's tag, evidently associating the module with the Apollo 15 CM 'Endeavour' (CSM-112), although flight status is unknown. The data modulator unit features two ports inset into one side, and bears a "Class III, Not for Flight" label affixed to the top. These modules were used exclusively on the science-oriented 'J' missions—Apollo 15 through Apollo 17—as part of the Scientific Data System. In very good to fine condition.
From The Peter Gerry Collection.
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