COAXIAL

Year Published: 1939

Creator: National Archives and Records Administration

Format: 16mm/video file

Description: National Archives and Records Administration - ARC Identifier 89091 / Local Identifier BTL-BTL-190 - COAXIAL - Bell Telephone Laboratories, Inc. On the value and principles of the coaxial cable. Explains how the coaxial carries many conversations at once and how calls over long distances are amplified by repeater stations. Shows details in the manufacture of coaxial cable. The first commercial stretch of cable is laid between Stevens Point, Wisc., and Minneapolis, Minn.

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