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Field telephones are telephones used for military communications. They can draw power from their own battery, from a telephone exchange (via a central battery known as CB), or from an external power source. Some need no battery, being sound-powered telephones. Telephone linesmen ford Lunga River during the Guadalcanal Campaign of World War II
The SCR-536 is often considered the first of modern hand-held, self-contained, "handie talkie" transceivers (two-way radios). It was developed in 1940 by a team led by Don Mitchell, chief engineer for Galvin Manufacturing (now Motorola Solutions) and was the first true hand-held unit to see widespread use. [1]
In 1984, the Vietnam Women's Memorial Project was founded by Diane Carlson Evans, leading to the creation of the Vietnam Women's Memorial in Washington D.C. in 1993. [112] [113] The Vietnam Women's Memorial is in Constitution Gardens, a park on the National Mall. [114] [115] It honors the American women who served in the Vietnam War. [116]
The AN/PRC-77 entered service in 1968 during the Vietnam War as an upgrade to the earlier AN/PRC-25.It differs from its predecessor mainly in that the PRC-77's final power amplifier stage is made with a transistor, eliminating the only vacuum tube in the PRC-25, as well as the DC-DC voltage converter used to create the high plate voltage for the tube from the 15 V battery.
Besides its extensive collection of telephones manufactured from the 1900s through the 2000s, the Jefferson Barracks Telephone Museum also contains a working Central Office Step Switch, [6] military telephones from WWII through the Vietnam War, hundreds of pieces of telephone-related equipment and tools, a telephone pole complete with climbing ...
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She becomes one of Army’s women nurses, who have been largely forgotten from the narrative of the Vietnam War. More than 265,000 women served in the military during Vietnam, and 11,000 actually ...
S-phone MK-IV, 1943. The S-Phone system was a UHF duplex radiotelephone system developed during World War II for use by Special Operations Executive agents working behind enemy lines to communicate with friendly aircraft and coordinate landings and the dropping of agents and supplies.