• Year
  • 1928/1929
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 74341
    • alternative name: Chicago Radio Lab

 Technical Specifications

  • Number of Tubes
  • 7
  • Valves / Tubes
  • Main principle
  • TRF without regeneration
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Direct Current supply (DC) / 115 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 333X 333-X - Zenith Radio Corp.; Chicago,
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Notes
  • Phono Input;
  • Price in first year of sale
  • 150.00 $
  • Circuit diagram reference
  • Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

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