• Country
• United States of America (USA)

• Manufacturer / Brand
• General Motors Radio Corp.

• Year
• 1931

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 103784

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

• Number of Tubes
• 10

• Valves / Tubes
• 35 27 24 35 35 27 27 45 45 80

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

• Tuned circuits
• 10 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Imperial 253 Ch= S-3A - General Motors Radio Corp.

• Shape
• Console with any shape - in general

• Notes
• 60 cycles. Push-pull af output.

• Price in first year of sale
• 149.00 $

• 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

• Literature/Schematics (1)
• Rider's Perpetual, Volume 5 = ca. 1934 and before

• Author
• Model page created by Arpad Roth † 27.3.17. See "Data change" for further contributors.

• Other Models

• Here you find 59 models, 29 with images and 49 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Motors Radio Corp.