• Country
• Australia

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

• Year
• 1950

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 190249

• Number of Tubes
• 3

• Valves / Tubes
• 6G8G EL33A 5Y3GT

• Main principle
• TRF with diode detector; 2 AF stage(s); Reflex

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm

• from Radiomuseum.org
• Model: Calstan 300 - Zenith Radio Co. Ltd.; Sydney,

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

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

• 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