• Year
  • 1918 ??
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 231826

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - Is a Headphone or Earphone
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Headphones 509-W - Western Electric Company Inc.;
  • Notes
  • USA, Western Electric 509-W Headphones, The Patent year on the headphone is 1918.

  • Author
  • Model page created by Randall Stuefen. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model Headphones is part of the collections of the following members.

 Forum