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  2. SCR-300 - Wikipedia

    en.wikipedia.org/wiki/SCR-300

    The SCR-300, designated AN/VRC-3 under the Joint Electronics Type Designation System, was a portable radio transceiver used by US Signal Corps in World War II. This backpack-mounted unit was the first radio to be nicknamed a "walkie talkie". [1]

  3. Foxhole radio - Wikipedia

    en.wikipedia.org/wiki/Foxhole_radio

    The foxhole radio, like a mineral crystal radio receiver, had no power source and ran off the power received from the radio station. They were named, likely by the press, for the foxhole, a defensive fighting position used during the war. There are also accounts of prisoners of war in World War II and in the Vietnam War having constructed ...

  4. Utility Radio - Wikipedia

    en.wikipedia.org/wiki/Utility_Radio

    The Utility Radio or Wartime Civilian Receiver was a valve domestic radio receiver, manufactured in Great Britain during World War II starting in July 1944. It was designed by G.D. Reynolds of Murphy Radio. Both AC and battery-operated versions were made. [1] [2] [3]

  5. SCR-536 - Wikipedia

    en.wikipedia.org/wiki/SCR-536

    The SCR-536 was a hand-held radio transceiver used by the US Army Signal Corps in World War II. It is popularly referred to as a walkie talkie , although it was originally designated a "handie talkie".

  6. SCR-694 - Wikipedia

    en.wikipedia.org/wiki/SCR-694

    The SCR-694 saw use all over the army in many different theaters; notable instances include at regimental division headquarters during the Normandy invasion [2] and the Cabanatuan prison raid [3] as well as by scouts and reconnaissance units in the Pacific War. [4] It was later replaced by the AN/GRC-9, which saw first documented use in the ...

  7. BC-610 - Wikipedia

    en.wikipedia.org/wiki/BC-610

    [2] Over 25,000 units were produced by Hallicrafters and other allied companies. In 1944, a short subject film was produced by the Jam Handy Organization and sponsored by the Hallicrafters Company detailing how the HT-4 transmitter was adapted for military service and dramatizing its use by the U.S. military during World War II. [3] [4]

  8. History of radio - Wikipedia

    en.wikipedia.org/wiki/History_of_radio

    Radio navigation played an important role during war time, especially in World War II. Before the discovery of the crystal oscillator, radio navigation had many limits. [ 73 ] However, as radio technology expanding, navigation is easier to use, and it provides a better position.

  9. Signal Corps Radio - Wikipedia

    en.wikipedia.org/wiki/Signal_Corps_Radio

    The term SCR was part of a nomenclature system developed for the U.S. Signal Corps, used at least as far back as World War I.Three-letter designators beginning with "SC" were used to denote complete systems, while one and two-letter designators (such as "BC", for basic component, "FT" for mounting, etc.) were used for components.