• Country
• Australia

• Manufacturer / Brand
• Airzone (1931) Ltd.; Sydney

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 94648

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 5

• Valves / Tubes
• 6A7 6D6 75 42 80

• Main principle
• Superheterodyne (common); ZF/IF 456 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 240 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6.5 inch = 16.5 cm

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Radio Star 550 Ch= 520 - Airzone 1931 Ltd.; Sydney

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 267 x 358 x 190 mm / 10.5 x 14.1 x 7.5 inch

• Price in first year of sale
• 15.75 AUS £

• Circuit diagram reference
• Australian Official Radio Service Manual Vol. I I

• Mentioned in
• The Golden Age of Radio in the Home 1986 (P148)

• Literature/Schematics (1)
• Radio Trade Annual of Australia (7th Edition 1939, Page 194.)

• Literature/Schematics (2)
• Australian Official Radio Service Manual AORSM (Volume 2, 1939, Page 21.)

• Author
• Model page created by Peter Hughes. See "Data change" for further contributors.

• Other Models

• Here you find 283 models, 130 with images and 154 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Airzone (1931) Ltd.; Sydney