• Country
• United States of America (USA)

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

• Year
• 1934

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

• Radiomuseum.org ID
• 51132

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

• Number of Tubes
• 6

• Valves / Tubes
• 44 or 39 77 44 or 39 75 42 84

• Main principle
• Superhet with RF-stage; ZF/IF 260 kHz; 2 AF stage(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios)

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• from Radiomuseum.org
• Model: 700 - Philco, Philadelphia Stg. Batt

• Notes
• The radio is equipped with a vibrator for the generation of B+.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 5 = ca. 1934 and before

• 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