• Country
• United States of America (USA)

• Manufacturer / Brand
• General Radio Company; Cambridge (MA)

• Year
• 9999

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 218051

• • alternative name: GenRad

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Dublette mit ID=202993 - General Radio Company;

• Notes
• Filter arbeitet für Wellenlängen zwischen 150 und 500 Metern.

• Price in first year of sale
• 10.00 $

• Mentioned in
• Radio News (January 1925 p1318)

• Author
• Model page created by Heinz Höger. See "Data change" for further contributors.

• Other Models

• Here you find 238 models, 212 with images and 128 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Radio Company; Cambridge (MA)