• Year
  • 1949
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 67973
    • 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
  • Superhet with RF-stage; ZF/IF 455/10700 kHz
  • 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) / Ø 4 inch = 10.2 cm
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: 7H921 Ch= 7F04 - Zenith Radio Corp.; Chicago,
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 12 x 7 x 6.5 inch / 305 x 178 x 165 mm
  • Notes
  • Selenium Rectifier
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 20 covering 1950

 Collections | Museums | Literature

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The model 7H921 is part of the collections of the following members.

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