SCR-300

Motorola SCR-300 circa 1940

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]

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