• Country
• Australia

• Manufacturer / Brand
• Zenith Radio Co. Ltd.; Sydney, NSW

• Year
• 1947

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 184742

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

• Number of Tubes
• 5

• Valves / Tubes
• 6A8G 6U7G 6B6G 6V6GT 5Y3GT

• Main principle
• Superheterodyne (common); ZF/IF 455 or 458 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) / 240 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: Calstan 521 - Zenith Radio Co. Ltd.; Sydney,

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

• Dimensions (WHD)
• 755 x 835 x 362 mm / 29.7 x 32.9 x 14.3 inch

• Notes
• The AORSM gives 455 kHz for this model but Mingay's index gives it as 458 kHz.

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

• Literature/Schematics (1)
• 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 84 models, 38 with images and 10 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Co. Ltd.; Sydney, NSW