• Country
• United States of America (USA)

• Manufacturer / Brand
• Sparks-Withington Co., (Sparton); Jackson, Michigan

• Year
• 1947 ?

• Category
• Car Radio, perhaps also + sound player/recorder

• Radiomuseum.org ID
• 58851

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

• Number of Tubes
• 6

• Valves / Tubes
• 7A7 7B8 7A7 7B6 7C5 7Y4

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 7 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 6 F 1 - Sparks-Withington Co., Sparton

• Shape
• Chassis only or for «building in»

• Notes
• vibrator for +B.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 16 = ca. 1948 and before

• Other Models

• Here you find 817 models, 365 with images and 754 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sparks-Withington Co., (Sparton); Jackson, Michigan