• Country
• United States of America (USA)

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

• Year
• 1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 67325

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 12

• Valves / Tubes
• 6K7G 6L7G 6J5G 6K7G 6T5 6H6G 6J5G 6J5G 6J5G 6V6G 6V6G 5Y4G

• Main principle
• Superhet with RF-stage; ZF/IF 456 kHz

• Tuned circuits
• 7 AM circuit(s)

• 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 12 inch = 30.5 cm

• Power out
• 15 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 12-S-245 Ch=1204 - Zenith Radio Corp.; Chicago,

• Shape
• Console: Chairside Radio.

• Dimensions (WHD)
• 31.9 x 20 x 20.6 inch / 810 x 508 x 523 mm

• Notes
• The schematic diagram got corrections (red). These lines are already missing in the Zenith drawing as well as in Riders and in Beitman.

• Price in first year of sale
• 150.00 $

• 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 8 = 1937 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