• Country
• United States of America (USA)

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

• Year
• 1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 67470

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 4

• Valves / Tubes
• 1A7G 1N5G 1H5G 1Q5G

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries / =6 Volt

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet. / Ø 5 inch = 12.7 cm

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 4B422 4-B-422 Ch=5417 - Zenith Radio Corp.; Chicago,

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 13.6 x 7.3 x 6.1 inch / 345 x 185 x 155 mm

• Notes
• Farm Radio

• Price in first year of sale
• 25.00 $

• External source of data
• Ernst Erb

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Circuit diagram reference
• Rider's Perpetual, Volume 11 = ca. 1940 and before

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

• Literature/Schematics (1)
• Zenith Radio The Glory Years 1936-1945

• 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