• Year
  • 1932 ??
  • Category
  • Car Radio, perhaps also + sound player/recorder
  • Radiomuseum.org ID
  • 57531

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 175 kHz
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / (135 or 180) & (67,5 or 90) & 6 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • from Radiomuseum.org
  • Model: 261 - Sentinel Radio Corp., Evanston
  • Notes
  • car battery for A, dry batteries for B supply.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 3 = 1933 and before

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