• Country
• United States of America (USA)

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

• Year
• 1952/1953

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 77510

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 6

• Valves / Tubes
• 6BJ6 12BE6 6BJ6 12AT6 50C5 35W4

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 117 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: K622 Ch= 6K03 - Zenith Radio Corp.; Chicago,

• Shape
• Tablemodel with Clock ((Alarm-) Clock Radio).

• Notes

• In the journal (Radio-) Television Retailing November 1952 this model is shown as "The new Super De Luxe" - a clock radio with all the de luxe features ... plus one more tube for extra distance. The same advertisement also shows pictures for models K515, K518, K622 and J733 (with "Super-Sensitive FM".  The prefix "K" is for 1953 and "J" is for 1952.

• Price in first year of sale
• 49.95 $

• Mentioned in
• Collector's Guide to Antique Radios (7th Edition) (page 314)

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (set 222, folder 16)

• Literature/Schematics (2)
• Radio Retailing (Radio & Television R.) (Television Retailing November 1952, page 77.)

• Literature/Schematics (3)
• Beitman Radio Diagrams, Vol. 13, 1953 (page 187)

• Author
• Model page created by Arpad Roth † 27.3.17. See "Data change" for further contributors.

• 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