• Year
  • 1936–1938
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 134304

 Technical Specifications

  • Wave bands
  • - without
  • Details
  • Other Combination - see Notes
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Cell-o-Phone Sound Projector 381 - Duo Trac Cell-o-phone Brand,
  • Shape
  • Console, Highboy (legs > 50 %).
  • Notes
  • It used optical film similar to a cinema soundtrack, a 4 mm cellophane ribbon which was read by a photocell. 2 mono tracks in different directions. Play time up to 1 hour.

    A description of the recording system was presented in Wireless World in 1937. See the Forum article "Description of the Duo-Trac System - Wireless World 1937".

  • Mentioned in
  • National Museum of Scotland, Edinburgh
  • Author
  • Model page created by Heribert Jung. See "Data change" for further contributors.

 Collections | Museums | Literature

Museums

The model Cell-o-Phone Sound Projector can be seen in the following museums.

 Forum