• Country
• United States of America (USA)

• Manufacturer / Brand
• DeForest Radio Telephone & Telegraph Co. (De Forest); New York

• Year
• 1909

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 277938

• • alternative name: Lee De Forest Mfg.

• Main principle
• Tuner pre 1926 (not a wave trap)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Loose Coupler Type E - DeForest Radio Telephone &

• Shape
• Tablemodel, with any shape - general.

• Mentioned in
• The Radio Telephone Co. Bulletin L-5

• Author
• Model page created by Richard Groshong. See "Data change" for further contributors.

• Other Models

• Here you find 158 models, 132 with images and 16 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from DeForest Radio Telephone & Telegraph Co. (De Forest); New York