• Country
• United States of America (USA)

• Manufacturer / Brand
• Western Auto Supply Co. (Truetone); Kansas City (MO)

• Year
• 1954 ?

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

• Radiomuseum.org ID
• 81179

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

• Number of Tubes
• 8

• Valves / Tubes
• 6BD6 6BE6 6BD6 6AV6 6C4 6AS5 6AS5 6X4

• 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
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Metal case

• from Radiomuseum.org
• Model: D4425B - Western Auto Supply Co.

• Shape
• Chassis only or for «building in»

• Notes
• Vibrator for +B, Push-pull output stage.

• Source of data
• Beitman Radio Diagrams, Vol. 15, 1955

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• Other Models

• Here you find 901 models, 515 with images and 795 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Western Auto Supply Co. (Truetone); Kansas City (MO)