• Country
• United States of America (USA)

• Manufacturer / Brand
• Duro Metal Products Co., (Quali-tone); Chicago, Illinois

• Year
• 1923 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 205837

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Horn

• Material
• Special material, described in the notes.

• from Radiomuseum.org
• Model: Quali-Tone Horn Speaker Style N - Duro Metal Products Co., Quali

• Shape
• Tablemodel, with any shape - general.

• Notes
• Duro Metal Products Quali-Tone Style N Horn Speaker with a 9.5" bell

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 7 models, 6 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Duro Metal Products Co., (Quali-tone); Chicago, Illinois