• Country
• United States of America (USA)

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

• Year
• 1939/1939

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 51490

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

• Number of Tubes
• 5

• Valves / Tubes
• 7A8 7B7 7C6 35A5 35Z3

• Main principle
• Superheterodyne (common); ZF/IF 470 kHz; 2 AF stage(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / 115 Volt

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

• Material
• Bakelite case

• from Radiomuseum.org
• Model: PT-27 Transitone [Early] - Philco, Philadelphia Stg. Batt

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 8.5 x 5.4 x 4 inch / 216 x 137 x 102 mm

• Notes
• The early version of Philco Transitone model PT-27 is marked as code 121 and has horizontal ribs across the speaker grill of its ivory painted bakelite cabinet. The late version is marked code 122 and has horizontal sloped louvers across the speaker grill.
  
  The early and late versions of PT-25 are similar, but with dark brown bakelite cabinets.

• Price in first year of sale
• 11.00 $

• External source of data
• Ernst Erb

• Source of data
• Collector's Guide to Antique Radios 4. Edition

• Circuit diagram reference
• Rider's Perpetual, Volume 12 = ca. 1941 and before

• Mentioned in
• Table Top Radios Vol. 1 Stein 98 (Philco Radio 1928-1942, Ramirez)

• Literature/Schematics (1)
• Philco dealers promotion radio sales, 1941

• 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