• Year
  • 1959 ?
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 354488

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Special material, described in the notes.
  • from Radiomuseum.org
  • Model: Treble 20 Tweeter - Magnum brand Burne-Jones & Co.
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • Treble 20

    the single loudspeaker faces downwards onto two cone reflectors, the upper reflector having a central hole and being for the sound from the outer part of the loudspeaker cone, and the lower being for the sound from the voice-coil dome and inner part of the cone. When this loudspeaker unit is stood on a flat sound-reflecting surface, this surface acts to some extent as an extension of the lower cone reflector. This unit gives a uniform horizontal distribution of sound.

  • Price in first year of sale
  • 7.00 GB £
  • Author
  • Model page created by Gary Cowans. See "Data change" for further contributors.

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