• Country
• United States of America (USA)

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

• Year
• 1935

• Category
• Car Radio, perhaps also + sound player/recorder

• Radiomuseum.org ID
• 67684

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 5

• Valves / Tubes
• 6A7 6D6 75 41 6Z4

• Main principle
• Superheterodyne (common); ZF/IF 456 kHz

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / =6 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Metal case

• from Radiomuseum.org
• Model: 664 Ch=5510 - Zenith Radio Corp.; Chicago,

• Shape
• Chassis only or for «building in»

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 7 = 1936 and before

• Mentioned in
• Zenith Radio The Early Years 1919-1935

• Other Models

• Here you find 4517 models, 4109 with images and 3652 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL