• Country
• United States of America (USA)

• Manufacturer / Brand
• Zenith Radio Corp.; Chicago, IL

• Year
• 1921

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

• Radiomuseum.org ID
• 213291

• • alternative name: Chicago Radio Lab

• Number of Tubes
• 1

• Valves / Tubes
• VT-Class-I or B_Moorhead-Shaw

• 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: Z-Nith Audion Detector AD - Zenith Radio Corp.; Chicago,

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

• Notes
• The Type AD Audion Detector Cabinet is featured in the "Z-Nith" catalog "Long Distance Radio Apparatus", Chicago Radio Laboratory, Bulletin F-21 on page 14 with a price of $ 17.
  The Detector was designed for use with the Marconi VT and other high vacuum tubes.

• Price in first year of sale
• 17.00 $

• Literature/Schematics (4)
• The Audion Detector is featured in the "Z-Nith" catalog "Long Distance Radio Apparatus", Chicago Rad

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 4496 models, 4101 with images and 3615 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL