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en:bc-322

Radio Receiver & Transmitter BC-322

Part of the SCR-195 radio system, manufactured for the United States Army Signal Corps.

Transceiver BC-322

Technical data

Power supply

Dimensions

  • 140 x 200 x 220 mm

Accessories

  • Handset TS-11-E (resp. TS-11-(*))
  • Antenna AN-30-B
  • Battery BA-32
  • Canvas bag BG-71
  • Chest CH-33 with spare parts and accessories for vehicle operation
  • Vehicle antenna material Mast Base MP-22, Mast Section MS-50 and MS-51

Transceiver BC-322

Operation

The BC-322 / SCR-195 is a very early compact small infantry radio, which was developed by the U.S. Army Signal Corps around 1938. The AM transceiver operates in the VHF band and has a VFO tunable from 52 to 66 MHz.

For portable operation, the radio was carried in a canvas bag, the antenna was screwed to the antenna base on top of the set, the matching BA-32 battery was attached to the bottom of the radio with two straps, and the TS-11-A handset was usually used with the set.

Transceiver BC-322 The BC-222 / SCR-194 with a very similar design transmits in the 28 - 52 MHz range and was used by the artillery, usually with a T-24 microphone and HS-22 headphones.

Technical principle

In transmit mode, the VT-67 works as a Hartley oscillator, the VT-33 as a modulator tube. In receive mode, the VT-67 works as a receive detector in a super regenerative circuit (audion) and the VT-33 as an audio amplifier tube.

Components

The set is equipped with a VT-67 and a VT-33.

Technical documentation

Development

The set was developed at the Signal Corps Laboratories, Fort Monmouth and built by various companies as contractors.
It was used for communication within an infantry regiment.

Further information

en/bc-322.txt · Zuletzt geändert: 2024/08/04 09:12 von mb