P-4635 (P-4635E)

• Country
• United States of America (USA)

• Manufacturer / Brand
• Philco, Philadelphia Stg. Batt. Co.; USA

• Year
• 1948/1949

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

• Radiomuseum.org ID
• 51466

• Picture
• Schematics

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

• Number of Tubes
• 8

• Valves / Tubes
• 7A7 7B8 7A7 7B6 7A4 7C5 7C5 7Y4

• Main principle
• Superhet with RF-stage; ZF/IF 265 kHz

• 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)

• from Radiomuseum.org
• Model: P-4635 - Philco, Philadelphia Stg. Batt

• Notes

• This model is equipped with a vibrator for the generation of B+.

  The P-4635E most likely is a later version.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 20 covering 1950

• Literature/Schematics (1)
• Radio College of Canada (Philco Datasheets 203-208)

• Other Models

• Here you find 4041 models, 2217 with images and 3690 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philco, Philadelphia Stg. Batt. Co.; USA