7S242AT Zephyr Ch=5709AT

Zenith Radio Corp.; Chicago, IL

  • Year
  • 1937
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 67999
    • 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
  • Superheterodyne (common); ZF/IF 456 kHz
  • Wave bands
  • Broadcast, Short Wave(s) and Police.
  • Power type and voltage
  • Alternating Current supply (AC) / 110-250 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 7S242AT Zephyr Ch=5709AT - Zenith Radio Corp.; Chicago,
  • Shape
  • Console: Chairside Radio.
  • Dimensions (WHD)
  • 23.3 x 22.5 x 16.8 inch / 592 x 572 x 427 mm
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 9 = 1938 and before

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