• Year
  • 1933/1934
  • Category
  • Car Radio, perhaps also + sound player/recorder
  • Radiomuseum.org ID
  • 58590

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 456 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Sparton 333 - Sparks-Withington Co., Sparton
  • Shape
  • Chassis only or for «building in»
  • Notes
  • Vibrator for +B.

  • Price in first year of sale
  • 39.95 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 4 = ca. 1934 and before
  • Mentioned in
  • Rider's 4-20

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