• Country
• Australia

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

• Year
• 1939 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 268606

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm

• Material
• Metal case

• from Radiomuseum.org
• Model: 8-21 [Permaflex Spider] - Rola Company AUS Pty. Ltd.;

• Shape
• Chassis only or for «building in»

• Notes

• 8" Permag loudspeaker.

  Type No.	8-21
  Overall Diameter	8"
  Voicecoil Diameter	1"
  Voicecoil Impedance	2.3Ω

  Superseded by PM Types 8K or 8M.

• Price in first year of sale
• 2.60 AUS £

• Mentioned in
• Radio & Hobbies for December 1939 (Vol 1, No. 9), Page 40.

• Literature/Schematics (1)
• - - Manufacturers Literature (Rola Abridged Specifactions (Date unknown).)

• Author
• Model page created by Gary Cowans. See "Data change" for further contributors.

• Other Models

• Here you find 194 models, 68 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