• Country
• United States of America (USA)

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

• Year
• 1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 73419

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 7

• Valves / Tubes
• 6A8G 6K7G 6H6G 6F5G 6T5 6F6G 5Y4G

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

• Wave bands
• Broadcast, Short Wave(s) and Police.

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 7S242W Zephyr Ch=5709 - Zenith Radio Corp.; Chicago,

• Shape
• Console: Chairside Radio.

• Dimensions (WHD)
• 27.8 x 20.4 x 17.8 inch / 706 x 518 x 452 mm

• Notes
• bone white version;

• Price in first year of sale
• 115.00 $

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 8, 1948

• Mentioned in
• Collector's Guide to Antique Radios 4. Edition

• Author
• Model page created by Konrad Birkner † 12.08.2014. 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