1956 Sperry AN/UPM-28 Spectrum Analyzer Set Handbook Manual Radar Test Equipment WWII Cold War

Original Sperry Gyroscope Company Handbook of Instructions for the Spectrum Analyzer Set AN/UPM-28, published in April 1956. This is an authentic U.S. military technical manual housed in its original maroon Sperry hard binder with gold company emblem. Produced by the Sperry Gyroscope Company, a division of Sperry Rand Corporation, this manual was used for operation and maintenance of military electronic spectrum analyzer equipment.

The title page is marked UNCLASSIFIED (formerly Confidential), reflecting its military service history. An excellent reference manual for collectors of Cold War electronics, radar systems, avionics, and military communications equipment.

Features

• Original Sperry Gyroscope Company publication
• Handbook of Instructions for Spectrum Analyzer Set AN/UPM-28
• Publication No. 14-417A
• Published April 1956
• Original maroon embossed hard binder with gold Sperry emblem
• Includes military issue/control card and handwritten service annotations
• Filled with operating instructions, technical information, diagrams, calibration procedures, and maintenance data

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