• Country
• United States of America (USA)

• Manufacturer / Brand
• Triangle Electric Co., Chicago Ill, Western Auto Supply Co

• Year
• 1925 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 263753

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - Is a Headphone or Earphone

• Material
• Metal case

• from Radiomuseum.org
• Model: Headphones 3000 Ohms - Triangle Electric Co., Chicago

• Shape
• Miscellaneous shapes - described under notes.

• Notes

• High Impedance Headphones.

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

• Other Models

• Here you find 7 models, 5 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Triangle Electric Co., Chicago Ill, Western Auto Supply Co