SCR-300

Motorola SCR-300 circa 1940

The SCR-300 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]

  1. ^ Magnuski, H. S. "About the SCR-300". SCR300.org. Retrieved 2 July 2016.

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