• Country
• United States of America (USA)

• Manufacturer / Brand
• MILITARY U.S. (different makers for same model)

• Year
• 1941 ?

• Category
• Military Transceiver (TRX)

• Radiomuseum.org ID
• 337594

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 7

• Valves / Tubes
• 6V6GT 6V6GT 6V6GT 1N5GT 1A7GT 3A8GT 1D8GT

• Main principle
• Transceiver

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Powered by external power supply or a main unit. / 6.3 and 300 Volt

• Loudspeaker
• - only for Earphone!

• Material
• Metal case

• from Radiomuseum.org
• Model: Receiver & Transmitter BC-474-A - MILITARY U.S. different makers

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Dimensions (WHD)
• 18 x 9.5 x 7.5 inch / 457 x 241 x 191 mm

• Notes

• The BC-474-A is the tranceiver portion of Portable Radio Set SCR-288.

  Receiver:     2300 - 6300 kHz
  Transmitter: 3500 - 6300 kHz, 4 watts output

   

• Net weight (2.2 lb = 1 kg)
• 23.75 lb (23 lb 12 oz) / 10.783 kg

• Mentioned in
• -- Original-techn. papers. (TM 11-310 & TM 11-250 (both issued October 1942))

• Author
• Model page created by Musée des Radios Museum. See "Data change" for further contributors.

• Other Models

• Here you find 397 models, 349 with images and 210 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from MILITARY U.S. (different makers for same model)