• Country
• Australia

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

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 166361

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

• Number of Tubes
• 5

• Valves / Tubes
• 1C4 1C6 1C4 1B5 1D4

• Main principle
• Superhet with RF-stage; ZF/IF 175 kHz; 2 AF stage(s)

• Tuned circuits
• 7 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 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 593 593 [with 1D4 valve.] - Airzone 1931 Ltd.; Sydney

• Shape
• Console, Lowboy (legs < 50 %).

• Notes

• Uses synchronous vibrator power supply.

  The PM22A valve was replaced with a 1D4 from serial number 6512.

• Price in first year of sale
• 34.65 AUS £

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

• Literature/Schematics (1)
• Radio Trade Annual of Australia (6th Edition 1938, Page 238.)

• Literature/Schematics (2)
• Australian Official Radio Service Manual AORSM (Volume 2, 1939, Page 24.)

• 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