270A Radio-Phonograph

• Country
• United States of America (USA)

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

• Year
• 1931/1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 50500

• Picture
• Schematics

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

• Number of Tubes
• 7

• Valves / Tubes
• 24 24 27 24 24 47 80

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

• Wave bands
• Broadcast only (MW).

• Details
• Record Player (not changer)

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: 270A Radio-Phonograph - Philco, Philadelphia Stg. Batt

• Shape
• Console with any shape - in general

• Notes
• Radio-Phonograph 270-A uses the chassis for model 70-A (25 Hz); 270 uses the chassis for model 70 (50-60 Hz). Models from later production (1932-33) have a different tube line-up: 35 24 35 27 35 47 80.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Mentioned in
• Philco Radio 1928-1942

• Other Models

• Here you find 4041 models, 2218 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