• Country
• United States of America (USA)

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

• Year
• 1928

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 58210

• Number of Tubes
• 6

• Valves / Tubes

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet. / Ø 10 inch = 25.4 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: A50 - Sonora Phonograph Co., Inc.;

• Shape
• Console, Lowboy (legs < 50 %).

• Notes

• 25 or 60 Hz.

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

• Mentioned in
• Radio Manufacturers of the 1920's, Vol. 3

• 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.