Group of four different Apollo Command Module (Block II) Guidance and Navigation (G&N) System Signal Conditioners, measuring about 3.75″ x 2.5″ x 2″ or smaller, stenciled on the bodies with part numbers and descriptions, including "Gimbal Resolver," "IRIG & PIPA," and "120V PIPA Supply and IRIG Temp." Three of the signal conditioners bear "Discrepant Item" failure labels.
From The Peter Gerry Collection.
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