C725F "The Super Sapphire" Ch= 7C06

Zenith Radio Corp.; Chicago, IL

  • Year
  • 1959 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 79108
    • alternative name: Chicago Radio Lab

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 455/10700 kHz; 2 AF stage(s)
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Power type and voltage
  • AC/DC-set / 117 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: C725F "The Super Sapphire" Ch= 7C06 - Zenith Radio Corp.; Chicago,
  • Shape
  • Tablemodel without push buttons, Mantel/Midget/Compact up to 14
  • Dimensions (WHD)
  • 13.375 x 8.75 x 7.625 inch / 340 x 222 x 194 mm
  • Notes
  • The Zenith C725F is an AC/DC operated 7 tube AM/FM receiver.  The AM band frequency tuning range is 535 to 1620kHz.  The FM band frequency tuning range is 88 to 108MHz.  Uses Selenium Rectifier in power supply. Has loop antenna for AM and uses the line cord for the FM antenna with provisions for connecting an external FM antenna. Has phonograph input jack on back of the radio, with the radio/phono select switch also located on the back of the radio.

    This model is part of the C725/C730 family of radio's:

    Model Chassis Speaker(s) Cabinet Color
    C725C 7C06 Elliptical PM 4" x 6" Charcoal
    C725F 7C06 Elliptical PM 4" x 6" Gray-Green
    C725L 7C06 Elliptical PM 4" x 6" Brown
    C730 7C05 Elliptical PM 4" x 6" and Electrostatic Speaker Mahogany
    C730E 7C05 Elliptical PM 4" x 6" and Electrostatic Speaker Blonde Oak
    C730R 7C05 Elliptical PM 4" x 6" and Electrostatic Speaker Walnut

     

  • Circuit diagram reference
  • Beitman Radio Diagrams Vol. 20, 1960
  • Author
  • Model page created by Trev Levick. See "Data change" for further contributors.

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The model C725F "The Super Sapphire" is part of the collections of the following members.

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