• Country
• Australia

• Manufacturer / Brand
• Rola Company (AUS) Pty. Ltd.; Melbourne

• Year
• 1963 ?

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 315818

• Wave bands
• - without

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3 inch = 7.6 cm

• Material
• Various materials

• from Radiomuseum.org
• Model: 3CQ [3½ Ω Voice Coil Impedance] - Rola Company AUS Pty. Ltd.;

• Notes

• Peak Power Capacity Watts	0.5
  Frequency Range c.p.s. (Hz)	220 - 7,000
  Voice Coil Impeadance at 400 c.p.s. (Hz)	3.5 ohms
  Gap Flux Density Gausses	7,700
  Gap Flux Lines	14,500
  Voice Coil Diameter Inches	⅝
  Overall Size of Housing Inches	3 9/16 x 3 9/16
  Front to Back Depth Inches	1 15/32
  Transformer Type	G

• Mentioned in
• -- Original prospect or advert (Rola Loudspeaker Data.)

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

• Other Models

• Here you find 194 models, 70 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Rola Company (AUS) Pty. Ltd.; Melbourne