• Country
• United States of America (USA)

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

• Year
• 1916

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

• Radiomuseum.org ID
• 186274

• • alternative name: Lee De Forest Mfg.

• Number of Tubes
• 1

• Valves / Tubes
• Audion_dbw

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

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Detector Panel RJ9 - DeForest Radio Telephone &

• Shape
• Miscellaneous shapes - described under notes.

• Notes
• Panel without case.

• Literature/Schematics (1)
• Radio Manufacturers of the 1920s, Vol 1 (p.164)

• Author
• Model page created by Joseph Woychowski. 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