• 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
• 77497

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 7

• Valves / Tubes
• 6BJ6 12AT7 6BJ6 12BA6 12AU6 19T8 or 19C8 35C5

• Main principle
• Superhet with RF-stage; ZF/IF 455/10700 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)     9 FM circuit(s)

• Wave bands
• Broadcast (BC) and FM or UHF.

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.25 inch = 13.3 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: J733R Ch= 7J03 - Zenith Radio Corp.; Chicago,

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

• Notes

• FM:88 - 108MHz. Selenium Rectifier

   

• Price in first year of sale
• 74.95 $

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 12, 1952

• Mentioned in
• Collector's Guide to Antique Radios (7th Edition) (page 313)

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 186, Folder 17, 11-52)

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

• Other Models

• Here you find 4491 models, 4096 with images and 3595 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL