• Country
• United States of America (USA)

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

• Year
• 1939

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 67616

• • alternative name: Chicago Radio Lab

• Number of Tubes
• 7

• Valves / Tubes
• 6S7G 6D8G 6S7G 6T7G 6G6G 6G6G 6ZY5G

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz

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

• Power type and voltage
• Line / Batteries (any type) / =6/~110 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 7J328 7-J-328 Ch=5715 - Zenith Radio Corp.; Chicago,

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 23.1 x 14 x 12.5 inch / 587 x 356 x 318 mm

• Notes
• Farm Radio for storage batt. or mains; In battery mode vibrator for +B;

• Price in first year of sale
• 80.00 $

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 9 = 1938 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 4505 models, 4101 with images and 3631 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL