Multiple Switchboards - Installation And Operation
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Shows a typical field army organization with its telephones and switchboards. Points out the advantages of multiple switchboards over interposition trunking of switchboards and explains common and local batteries, their tactical use, advantages and capacity traffic.
Related films
Sources
- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, creator, length, format, sound, description
- 16mm Filmography (legacy record) — catalog record
Original permalink · Record added 2023-02-27 03:01:50