• Country
• Australia

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

• Year
• 1941

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 171261

• Number of Tubes
• 5

• Valves / Tubes
• 1C7G 1M5G 1M5G 1K7G 1L5G

• Number of Transistors

• Semiconductors
• Vibrator

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

• Tuned circuits
• 8 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6.5 inch = 16.5 cm

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Concert Star 6851V - Airzone 1931 Ltd.; Sydney

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Mentioned in
• -- Original prospect or advert (ABC Weekly, 5 April 1941, p.2)

• Literature/Schematics (1)
• Radio & Electrical Retailer, Australia (7/1/43 P12 Also in Mingay's Radio Diagram & I.F. Index)

• Author
• Model page created by Stuart Irwin. See "Data change" for further contributors.

• Other Models

• Here you find 283 models, 131 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