• Country
• United States of America (USA)

• Manufacturer / Brand
• General Electric Co. (GE); Bridgeport CT, Syracuse NY

• Year
• 1931

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 42544

• • Brand: Musaphonic

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

• Number of Tubes
• 7

• Valves / Tubes
• 35 24 27 35 27 45 45

• Main principle
• Superhet with RF-stage; ZF/IF 175 kHz

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Direct Current supply (DC) / 105-125 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: S-22D - General Electric Co. GE;

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Notes
• equivalent with RCA Victor Superette R-7DC. For 230 VDC operation a separate resistance unit is available.

• Price in first year of sale
• 77.00 $

• External source of data
• Ernst Erb

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

• Circuit diagram reference
• Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)

• Mentioned in
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Other Models

• Here you find 2918 models, 2141 with images and 2045 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Electric Co. (GE); Bridgeport CT, Syracuse NY