• Year
  • 1955 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 73602
    • alternative name: Chicago Radio Lab

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / Battery Pack 1.5 & 67.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3.5 inch = 8.9 cm
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: T402Y Ch=4T42 - Zenith Radio Corp.; Chicago,
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Notes
  • Zenith model T402Y is a battery operated portable AM superheterodyne receiver.

  • Circuit diagram reference
  • Beitman Radio Diagrams Vol. 15, 1955

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