• Year
  • 1933
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 74300
    • alternative name: Chicago Radio Lab

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

 Technical Specifications

  • Number of Tubes
  • 10
  • Main principle
  • Superhet with RF-stage; ZF/IF 175 kHz
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 115/230 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 473 Ch= 2030 - Zenith Radio Corp.; Chicago,
  • Shape
  • Console with any shape - in general
  • Notes
  • Two speakers;

    Model 473 for export.

    Wave band 170-560m.

    Plays records at 78 and 33 1/3 RPM

  • Circuit diagram reference
  • Rider's Perpetual, Volume 3 = 1933 and before

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