• Country
• United States of America (USA)

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

• Year
• 1919

• Category
• Amateur Equipment (Other, but not Key)

• Radiomuseum.org ID
• 213809

• • alternative name: Chicago Radio Lab

• Wave bands
• - without

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: HY-Rad Rotary Spark Gap - Zenith Radio Corp.; Chicago,

• Shape
• Tablemodel, with any shape - general.

• Notes
• (Pre-Zenith) Chicago Radio Laboratory Hy-Rad Rotary Spark Gap. 1/10 H.P. 3400 R.P.M. motor

• Price in first year of sale
• 28.00 $

• Literature/Schematics (1)
• November 1919 QST magazine page 43

• Author
• Model page created by Alan Larsen. 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