• Country
• United States of America (USA)

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

• Year
• 1959

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 72378

• • 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 12BA6 12BA6 12AU6 19T8 35C5

• Main principle
• Superhet with RF-stage; ZF/IF 455/10700 kHz

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

• Power type and voltage
• Alternating Current supply (AC) / 110 - 120 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: B728C Ch= 7A03 - Zenith Radio Corp.; Chicago,

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

• Dimensions (WHD)
• 13.375 x 7.5625 x 7.8125 inch / 340 x 192 x 198 mm

• Notes

• The Zenith Modell B728C is an AC Operated AM-FM Superheterodyne Receiver with Electric Clock and the ability to operate appliances with up to 1100 watts.

  The following models use the same schematic and cabinet but have different cabinet colors.

  Model	Cabinet Color
  B728C	Charcoal Black
  B728F	Pine Frost Green
  B728W	Snow White

• Source of data
• Collector's Guide to Antique Radios (6th edition)

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 19, 1959

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 5-59, Set 442, Folder 19)

• Author
• Model page created by Hinrich Grensemann † 15.5.16. 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