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". [1] The SCR-536 is often considered the first of modern hand-held, self-contained, "handie talkie" transceivers (two-way radios).

Sep 25, 2020 · Built by Galvin Manufacturing (which later became Motorola), the SCR-536 weighed just 2.3 kilograms and was “designed for operation under battle conditions,” according to its technical manual.

Jun 7, 2022 · BC-611, also known as SCR-536, 1 handy talkie or walkie talkie, was a valve-based hand-held two-way radio transceiver, developed in 1940 by Don Mitchell at Galvin Manufacturing (now: Motorola) for the US Army.

Radio set SCR-536-(*) is crystal con­ trolled on both reception and transmi::;soni, and will operate over the frequency range of 3500 to 6000 kilocycles. However, each unit is adjusted to operate at only one frequency in this band. The set can be made to operate at any frequency in the band by proper choice of crystals and coils.

SCR-536 Radio Set BC-611 Mil TRX MILITARY U.S. different makers for same model, build 1941–1956, 28 pictures, 13 schematics, 5 tubes, United States of

Apr 22, 2022 · Radio Set SCR-536 was a first in the military communications field. The designers incorporated the microphone, earphone, batteries, antenna, and all of the electronics in a single case with a...

Oct 29, 2021 · The SCR-536 is designed for two-way voice communication over distances up to one mile. The effective range is often decreased by terrain features like hills, steel buildings, heavily wooded areas and power lines located between the two stations.

Dec 31, 2014 · It is designed for amplitude-modulated, two-way communication over short distances. The outstanding feature of its design and construction is its extreme portability. It is intended primarily as a handietalkie for foot combat troops."

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"

Jul 20, 2012 · The SCR-536/BC-611 was manufactured by Galvin starting in 1942 and was a breakthrough device - the first "handi-talkie". This single-channel, crystal-controlled, AM transceiver was capable of operation on 3.5 Mhz to 6 Mhz.