• Country
• Australia

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

• Year
• 1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 80894

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

• Number of Tubes
• 5

• Valves / Tubes
• 6A8G 6U7G 6B6G 6F6 5Y3

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Alternating Current supply (AC) / 230-260 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Symphony Leader 537 - Airzone 1931 Ltd.; Sydney

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Notes

• The dial lights in amber for broadcast, green for short wave.

  There is also a 1940 version 537A, equipped with a 6V6G in place of a 6F6.

• Literature/Schematics (1)
• Australian Official Radio Service Manual Vol. 3, Page 23

• Author
• Model page created by Ernst Erb. 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