• 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
• 19021

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 6

• Valves / Tubes
• 6L7G 6J5G 6K7G 6Q7G 6V6G 5Y4G

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110-250 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 15 cm = 5.9 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: 6A223 6-A-223 Ch=5640AT - Zenith Radio Corp.; Chicago,

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

• Dimensions (WHD)
• 600 x 300 x 250 mm / 23.6 x 11.8 x 9.8 inch

• Notes
• Export model.
  Usually the season started mostly the previous year to get the X-mas sales.

• Price in first year of sale
• 390.00 SFR

• External source of data
• E. Erb 3-907007-36-0

• Circuit diagram reference
• Die «Thali Schemasammlung» führt das Modell.

• Mentioned in
• 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