Sparton 41A Police Auto Receiver

Sparks-Withington Co., (Sparton); Jackson, Michigan

  • Year
  • 1932 ?
perfect model
  • Category
  • Car Radio, perhaps also + sound player/recorder
  • Radiomuseum.org ID
  • 58616

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • TRF without regeneration; 1 AF stage(s); Screengrid 1926-1935
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Sparton 41A Police Auto Receiver - Sparks-Withington Co., Sparton
  • Shape
  • Chassis only or for «building in»
  • Notes
  • Tube 39 is on the market since 1932! We might have to question this: "Sparton Manual 1, Bulletin 53-1, 2   Bulletin 39-3, 4"

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 8 = 1937 and before
  • Mentioned in
  • Rider's 8-8, 7-3

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