Plessey 8H 15 Ω Voice Coil Impedance

Plessey Rola/Plessey Australia Pty. Limited; Villawood, NSW

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  • Year
  • 1971–1974
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 316039

 Technical Specifications

  • Wave bands
  • - without
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Plessey 8H [15 Ω Voice Coil Impedance] - Plessey Rola/Plessey Australia
  • Notes

  • 8" loudspeaker.

    Power handling capacity 4 watts (6 watts peak).
    Diaphragm Fundamental resonance: 115 Hz
    Frequency response 105 Hz -  7 kHz
    Voice coil impedance 15 ohms at 400 Hz
    Air gap flux density 0.82 tesla
    Gap flux 200 µ weber
    Dimensions Overall diameter of diaphragm housing: 8 1/16"
    Size of baffle opening: 7 1/16"
    Diameter of voice coil: ¾"
    Depth from pad ring to rear: 3 1/16"
    Mounting Four slots spaced 90º apart on a 7 19/32 pitch circle diameter. Dimensions of slots 5/16" x 7/32"

    Plessey branded Rola 8H.

  • Literature/Schematics (1)
  • - - Manufacturers Literature (Plessey Rola Loudspeaker Data, August 1972.)
  • Author
  • Model page created by Martin Kent. See "Data change" for further contributors.

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