• Year
  • 1932/1933 ?
  • Category
  • Car Radio, perhaps also + sound player/recorder
  • Radiomuseum.org ID
  • 51131

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superhet with RF-stage; ZF/IF 175 kHz; 2 AF stage(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / 135 & 67.5 & 6 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 7 Transitone - Philco, Philadelphia Stg. Batt
  • Shape
  • Chassis only or for «building in»
  • 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
  • Mentioned in
  • Radio College of Canada (Philco 10)
  • Literature/Schematics (1)
  • Complete instructions for adjusting all Philco Radio Receivers

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