Siemens teletype signal analyzer test set used by the US Navy, marked as "Siemens Model DTS-531P, Part No. 100609-501, Serial No. 242," featuring an "Analyzer," "Generator," and "Level Converter" housed inside a black Samsonite suitcase, measuring 18″ x 12.5″ x 5″. The "Error Count" unit bears an affixed Navy METCAL program special calibration label, marked with a due date of November 12, 1988. In very good to fine condition. An impressive piece of hardware filled with aesthetically appealing knobs and switches, ideal as a movie prop or display piece.
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