R472 Circle of Sound

Zenith Radio Corp.; Chicago, IL

  • Year
  • 1978 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 215348
    • alternative name: Chicago Radio Lab

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Power type and voltage
  • Line / Batteries (any type) / 120 & 1 x 9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: R472 Circle of Sound - Zenith Radio Corp.; Chicago,
  • Shape
  • Tablemodel with Clock ((Alarm-) Clock Radio).
  • Dimensions (WHD)
  • 11.125 x 5 x 7 inch / 283 x 127 x 178 mm
  • Notes
  • Zenith Circle Of Sound clock radio model Solid State Electronic R472 with red digital readout.
    9V Battery for Clock memory.

    Made in Hong Kong

  • Net weight (2.2 lb = 1 kg)
  • 4 lb 6 oz (4.375 lb) / 1.986 kg
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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