• Country
• United States of America (USA)

• Manufacturer / Brand
• Hoodwin Co., Chas. - see also Aero (brand); Chicago, IL

• Year
• 1931

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

• Radiomuseum.org ID
• 44432

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

• Number of Tubes
• 6

• Valves / Tubes
• 36 36 36 36 38 38

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

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries / 6 & 22 & 135 Volt

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

• Material
• Metal case

• from Radiomuseum.org
• Model: A 1932 Aero Pentode Auto Radio [before Nov.10,1931] - Hoodwin Co., Chas. - see also

• Shape
• Chassis only or for «building in»

• Notes
• +A from storage battery, all other supply voltages from dry batteries.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 3 = 1933 and before

• Other Models

• Here you find 21 models, 10 with images and 18 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hoodwin Co., Chas. - see also Aero (brand); Chicago, IL