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WWII US Navy NAVSHIPS 900,227(A) OBL-1 Cathode Ray Oscillograph Manual 1945 DuMont Men's Clothing channel selector

SKU: 89083937050
4.1
EUR80.00 EUR115.00

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Description

channel selector

Dated 1940 and stamped with the manufacturer’s mark “E

The obverse depicts Lee in military uniform with the Latin inscription honoring his leadership

these revolvers are well regarded for their accuracy

oscillators

WWII US Navy NAVSHIPS 900,227(A) OBL-1 Cathode Ray Oscillograph Manual 1945 DuMont Men's Clothing channel selectorOriginal World War II U. S. Navy Bureau of Ships Instruction Book for the Cathode Ray Oscillograph, Navy Model OBL 1. Published as NAVSHIPS 900,227(A) and approved 20 September 1945. Manufactured by Allen B. DuMont Laboratories, Inc. of Passaic, New Jersey, one of the pioneering companies in American electronics and cathode ray tube development. The OBL 1 oscillograph was designed as a portable electronic test instrument used by Navy technicians for

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