• Year
  • 1950 ??
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 347121
    • alternative name: Whiteley Electrical Radio Co. Ltd.; Mansfield

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 inch = 25.4 cm
  • Power out
  • 6 W (unknown quality)
  • Material
  • Special material, described in the notes.
  • from Radiomuseum.org
  • Model: 10" - Whiteley Electrical Radio,
  • Shape
  • Chassis only or for «building in»
  • Notes
  • This twin " quality " reproducer, incorporating two independent speakers, is the latest application of the now well-known 'Series gap' magnet system, originated by W.B. engineers.

    The centre pole is hollow and forms the beginning of the pressure horn which loads the convex high-frequency diaphragm at the rear. In front, this pole piece is surrounded by a separate gap, in which the low-frequency speech coil operates. The speaker should not be confused with the double-cone type.

    There is no cross modulation, and the range very evenly covered (especially if a cross-over network is used) is from 50 to 14,000 c.p.s.

    Although suitable for outputs up to 6 watts only, this small speaker is nevertheless a high-fidelity reproducer in the best sense of the word

    Specification

    • Series Gap Magnet of Alcomax 3.
    • Cone: 10" diameter.
    • Flux in L.F. gap, 12,000 gauss on I" pole.
    • Flux in H.F. gap, 13,000 gauss on I" pole.
    • Power handling capacity (both component speakers) 6 watts. Chassis material pressure die-cast from Mazak 3, non-magnetic and non-resonant alloy.

    Also available as a 12" version.

  • Price in first year of sale
  • 6.30 GB £
  • Author
  • Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

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