• Country
• United States of America (USA)

• Manufacturer / Brand
• Sonora Phonograph Co., Inc.; New York, N.Y.

• Year
• 1930 ??

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 58198

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

• Number of Tubes
• 5

• Valves / Tubes

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC)

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

• from Radiomuseum.org
• Model: 7P - Sonora Phonograph Co., Inc.;

• Notes
• 7P is an electric phonograph, without radio.

• External source of data
• Ernst Erb

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

• Other Models

• Here you find 81 models, 33 with images and 37 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sonora Phonograph Co., Inc.; New York, N.Y.