• Country
• United States of America (USA)

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

• Year
• 1933 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 44436

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

• Number of Tubes
• 4

• Valves / Tubes
• 57 56 47 80

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• - This model requires external speaker(s).

• from Radiomuseum.org
• Model: Aero Amplifier - Hoodwin Co., Chas. - see also

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 4 = ca. 1934 and before

• Literature/Schematics (1)
• -- Schematic

• 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