• Country
• United States of America (USA)

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

• Year
• 1941 ??

• Category
• Military Receiver

• Radiomuseum.org ID
• 280941

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

• Number of Tubes
• 6

• Valves / Tubes
• 38646 or 6D6 38646 or 6D6 38646 or 6D6 38646 or 6D6 38041 or 41 38041 or 41

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Direct Current supply (DC) / 6 & 90 & 180 Volt

• Loudspeaker
• - only for Earphone!

• Material
• Metal case

• from Radiomuseum.org
• Model: Radio Receiver RAL-5 - MILITARY U.S. different makers

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

• Notes

• Similar to RAK 5 with different frequency range: 300 kHz - 23 MHz in 9 sub-ranges. 
  2 RF amplifier stages with reaction detection.

  Courtesy of "Radiosurplus Ieri e Oggi" Umberto Bianchi, Italy.

• Mentioned in
• The Surplus Handbook - Receivers and Transmitters (page 79; 81)

• Author
• Model page created by Alessandro De Poi. See "Data change" for further contributors.

• Other Models

• Here you find 393 models, 345 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)