WWII 1945 TM 11-1213 Oscilloscope I-134-C Modern Electronic Model 830 Restricted

Original WWII U.S. War Department Technical Manual TM 11-1213, dated 15 January 1945, covering the Oscilloscope I-134-C (Modern Electronic Model 830).

This is an original wartime technical publication for the military I-134-C oscilloscope, an electronic test instrument used in servicing and troubleshooting communications and electronic equipment. Both the cover and title page carry the period “RESTRICTED” classification notice.

This example has particularly interesting provenance markings. The title page bears an embossed U.S. Naval Ordnance Test Station – Technical Library ownership stamp, and the cover retains a library classification label marked “U 408.3 .A5 Copy 2,” along with additional handwritten library/reference notations. These markings give the manual added institutional and military research interest.

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