1948 US Navy Echo Box TS-311A/UP NAVSHIPS 91111 Instruction Manual + 1953 T-1 Update

Original U.S. Navy Bureau of Ships Instruction Book for the Echo Box TS-311A/UP, NAVSHIPS 91111, manufactured by General Communication Co., Boston, Massachusetts.

This original post-WWII Navy technical manual was approved on 22 June 1948 and includes the scarce Temporary Correction T-1 update dated 12 November 1953. The manual provides operating, maintenance, and servicing instructions for the TS-311A/UP Echo Box, a specialized naval electronic test device used with radar and communications equipment.

An excellent addition for collectors of U.S. Navy electronics, NAVSHIPS manuals, Cold War-era military technical publications, or vintage radar test equipment.

Included

• Original NAVSHIPS 91111 Instruction Book
• Temporary Correction T-1 (6-page update)
• Original gray cardstock cover
• Complete manual

Features

• Title: Instruction Book for Echo Box TS-311A/UP
• NAVSHIPS: 91111
• Equipment: TS-311A/UP Echo Box
• Manufacturer: General Communication Co., Boston, Massachusetts
• Issued by: U.S. Navy Bureau of Ships
• Approval Date: June 22, 1948
• Includes original Temporary Correction T-1
• Correction dated November 12, 1953
• Original Cold War-era U.S. Navy technical publication

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