• Country
• United States of America (USA)

• Manufacturer / Brand
• Modern Engineering Co.; Toledo, Ohio

• Year
• 1937/1938

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 202146

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Metal case

• from Radiomuseum.org
• Model: Trumpet Unit - Modern Engineering Co.; Toledo

• Notes
• Permanent magnet type; combines extremely high watt for watt efficiency with maximum input wattage capacity, it is claimed;
  Also made: full line off all-aluminum trumpets (41, 51, 63 and 72 inch overall length).

• Source of data
• Radio Retailing (Radio & Television R.)

• Author
• Model page created by Heiko zur Mühlen. See "Data change" for further contributors.

• Other Models

• Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Modern Engineering Co.; Toledo, Ohio