Fluxmaster Series 8H 15 Ω Voice Coil Impedance

Rola Company (AUS) Pty. Ltd.; Melbourne

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  • Year
  • 1962–1971 ??
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 314003

 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: Fluxmaster Series 8H [15 Ω Voice Coil Impedance] - Rola Company AUS Pty. Ltd.;
  • Notes

  • 8" loudspeaker with F74 cone.

    Power handling capacity 4 watts (6 watts peak).
    Diaphragm Fundamental resonance: 110 c.p.s. (Hz)
    Frequency response 110 c.p.s. (Hz) - 7 K.C. (kHz)
    Voice coil impedance 15 ohms at 400 c.p.s. (Hz)
    Air gap flux density 9,200 Gauss (Gs)
    Total gap flux 22,800 lines
    Transformer Type Q or D for equipment deriving power from mains or vibrators.
    Principle 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"
    Finish Baked enamel diaphragm housing, magnet shell
    black lacquered.
    Weight (without transformer) 1 lb ¼ ozs.

    Rebranded Plessey Type 8H after 1971.

  • Net weight (2.2 lb = 1 kg)
  • 1 lb 4 oz (1.25 lb) / 0.568 kg
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Rola Loudspeaker Data Technical Bulletin, No. 22, 1/5/1962.)
  • Author
  • Model page created by Martin Kent. See "Data change" for further contributors.

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