• Country
• Australia

• Manufacturer / Brand
• Plessey Rola/Plessey Australia Pty. Limited; Villawood, NSW

• Year
• 1971

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 319507

• Wave bands
• - without

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 12 inch = 30.5 cm

• Material
• Various materials

• from Radiomuseum.org
• Model: Plessey Alnico 12PX Twin Cone - Plessey Rola/Plessey Australia

• Notes

• 12" loudspeaker.

  Power handling capacity	15 watts RMS.
  Diaphragm	Fundamental resonance: 50 Hz.
  Frequency response	45 Hz - 12 kHz.
  Voice coil impedance	15 ohms at 400 Hz.
  Air gap flux density	12,800 gauss
  Total gap flux	87,000 lines
  Transformer	Not supplied.
  Principle dimensions	Overall diameter of diaphragm housing: 12 3/32" Size of baffle opening: 10 29/32" Diameter of voice coil: 1¾". Depth from pad ring to rear: 4¾"
  Mounting	Four ⅜" x ¼" slots spaced 90º apart on a 11 ⅝" pitch circle diameter.
  Finish	Baked enamel housing, magnet shell black lacquered.
  Weight (without transformer)	3 lb 7½ ozs.

  See also Rola 12PX.

• Price in first year of sale
• 25.92 AUS $

• Literature/Schematics (1)
• - - Manufacturers Literature (Plessey Loudspeaker Data (Rola Division), No. 8)

• Author
• Model page created by Martin Kent. See "Data change" for further contributors.

• Other Models

• Here you find 24 models, 17 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Plessey Rola/Plessey Australia Pty. Limited; Villawood, NSW