• Country
• United States of America (USA)

• Manufacturer / Brand
• Aero Products Inc.; Chicago, Illinois (Hoodwin)

• Year
• 1927 ?

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 200539

• Main principle
• RF-Circuit or wave trap (separate, can also be an antenna with amp.)

• Wave bands
• Broadcast only (MW).

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Universal Coil U 55 - Aero Products Inc.; Chicago,

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 2.75 x 3.75 x 2.75 inch / 70 x 95 x 70 mm

• Notes
• Aero Universal Coil U 55;
  200 - 550 meters, by AERO Products, 772 Wilson Ave., Chicago, IL.

• Price in first year of sale
• 4.00 $

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 21 models, 21 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Aero Products Inc.; Chicago, Illinois (Hoodwin)