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.

Mar 3, 2025 · Radio Set SCR-536 is a very compact receiver - transmitter resembling an oversize telephone hand set. Complete with batteries, antenna, transmitter, receiver - and handset in one case. The BC-611 is a handheld radio commonly known as the first "Handi Talkie" To remove the circuits from the case for service" Pull the radio out from the bottom.

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

Under the Army Nomenclature System, the BC-611 transceiver was the core component of the SCR-536 Signal Corps Radio set. The Signal Corps technical manual number was TM 11-235.

SCR-536/BC-611-F Freq range: 3.5-6 Mhz AM, 40 KHz channel spacing 1 channel crystal controlled Transmit power 36 mw receive sensitivity 3 to 5 microvolts internal AN-190 antenna internal handset with jacks for external hi Z mic/spkr [note: the jacks are connected to the grid and plates of the audio tubes. Versions prior to F did not have the ...

The BC-611 was a hand-held radio transceiver used by the US Army Signal Corps in World War II. Under the Army Nomenclature System, the BC-611 transceiver was the core component of the SCR-536 Signal Corps Radio set.

Voice Privacy PTT cover -The BC-611 is turned by raising the antenna. The Push To Talk switch is very convenient, maybe too convenient such that someone might transmit without intending to. This device covers the PTT switch so you can still hear, but not mistakenly transmit.

Early in World War Two the U. S. Military recognized a real need for a communication device for ground troops that was portable and easy to use with moderate range. The BC-611 two-way radio design was selected to fill this need and the requirements met those requested.

Audio stream of 3885 KHz from Georgia USA popular ham frequency for BC-611 and other AM radios. From N4DKD.

BC-611 is a "Squad Radio", a small hand held unit for very local communications. The collection shows all American Squad radios from their beginning (1941) to 1986. ==>