• Year
  • 1940
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 74181
    • alternative name: Chicago Radio Lab

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Power type and voltage
  • Line / Batteries (any type) / 110 or 6 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 10 inch = 25.4 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 7J1429 Ch=5722T - Zenith Radio Corp.; Chicago,
  • Shape
  • Tablemodel with Push Buttons.
  • Dimensions (WHD)
  • 26 x 13.5 x 12.4 inch / 660 x 343 x 315 mm
  • Notes
  • Farm Radio for storage battery or mains supply; Export model.   Radio has tube numbers  identified (embossed) by the factory on the tube sockets. Full wave rectifier 6X5 is hidden in non-ventilated insulated metal box along with transformer and vibrator. No provision made for tuning eye. No schematic found yet but careful inspection shows that the 2 volt 1J6 fillament voltage is achieved by a dropping resistor and by putting two of the three 2 volt dial lights in series with the filament.

    See model 7J1458 which is the console version.

  • Price in first year of sale
  • 90.00 $

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The model 7J1429 is part of the collections of the following members.

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