• Country
• United States of America (USA)

• Manufacturer / Brand
• Automatic Radio Mfg. Co.; Boston (MA)

• Year
• 1930

• Category
• Car Radio, perhaps also + sound player/recorder

• Radiomuseum.org ID
• 33691

• Number of Tubes
• 6

• Valves / Tubes

• Main principle
• TRF without regeneration; Screengrid 1926-1935

• Power type and voltage
• Storage and/or dry batteries

• Material
• Metal case

• from Radiomuseum.org
• Model: Senior 224 - Automatic Radio Mfg. Co.;

• Shape
• Chassis only or for «building in»

• Notes

• One dial (primary tuning control knob)

• Price in first year of sale
• 95.00 $

• External source of data
• Ernst Erb

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

• Other Models

• Here you find 401 models, 163 with images and 321 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Automatic Radio Mfg. Co.; Boston (MA)