• Country
• United States of America (USA)

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

• Year
• 1937/1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 67865

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 6

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

• Main principle
• Superheterodyne (common); ZF/IF 455 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 6 inch = 15.2 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 6S223 Ch= 5638 - Zenith Radio Corp.; Chicago,

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 19.3 x 11.4 x 9.8 inch / 490 x 290 x 249 mm

• Notes
• Bunis predates by one year. This may be based on Zenith 1937 advertising "Preview of new products" in "Blast of the Past". And usually the season started mostly the previous year to get the X-mas sales.

• Price in first year of sale
• 50.00 $

• 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)
• Machine Age to Jet Age II (page 319.)

• 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