• Country
• United States of America (USA)

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

• Year
• 1917

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

• Radiomuseum.org ID
• 309699

• • alternative name: Lee De Forest Mfg.

• Number of Tubes
• 1

• Valves / Tubes

• Main principle
• Detector with Vacuum Tube (Valve), no tuner

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries / 6 & 125 Volt

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Audion Control Box Type CF122 - DeForest Radio Telephone &

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 300 x 340 x 260 mm / 11.8 x 13.4 x 10.2 inch

• Net weight (2.2 lb = 1 kg)
• 9.6 kg / 21 lb 2.3 oz (21.145 lb)

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

• Other Models

• Here you find 158 models, 133 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