• Country
• United States of America (USA)

• Manufacturer / Brand
• Atwater Kent Mfg. Co.; Philadelphia, USA

• Year
• 1922

• Category
• Radio module post 1925 (not a part, not a key)

• Radiomuseum.org ID
• 74550

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 1

• Valves / Tubes
• UV200 or UV201

• 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
• Bakelite case

• from Radiomuseum.org
• Model: 3902 Detector Unit - Atwater Kent Mfg. Co.;

• Notes
• Det. unit for breadboards, e.g. 3955 and 3975. Rheostat resistance 2 Ohms (for 1 amp tubes).

• Literature/Schematics (1)
• A.Atwater Kent, The Man, 2002 (p.25)

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 507 models, 331 with images and 332 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Atwater Kent Mfg. Co.; Philadelphia, USA