• Country
• United States of America (USA)

• Manufacturer / Brand
• RAO Manufacturing Co.; Minneapolis, MN

• Year
• 1926 ??

• Category
• Detector-Radio (Crystal or diode, without tubes/transistors)

• Radiomuseum.org ID
• 308730

• Main principle
• Crystal or Solid State Detector

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Various materials

• from Radiomuseum.org
• Model: Hidden Coil Receiving Set - RAO Manufacturing Co.;

• Shape
• Tablemodel, with any shape - general.

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from RAO Manufacturing Co.; Minneapolis, MN