• Country
• Australia

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

• Year
• 1954 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 282903

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

• Number of Tubes
• 9

• Valves / Tubes
• 6BA6 6BE6 6N8 6AL5 EM85 6BA6 6AV6 6AQ5 6AQ5 5Y3

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz; 3 AF stage(s); something special ? Please give information (notes)

• Tuned circuits
• 7 AM circuit(s)

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

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

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 10 W (max.)

• from Radiomuseum.org
• Model: Calstan 901 - Zenith Radio Co. Ltd.; Sydney,

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 360 x 200 x 230 mm / 14.2 x 7.9 x 9.1 inch

• Notes

• The audio output transformer was mounted on the speaker with a multi core cable joining them.

  A switch selects Radio/Radio (with noise limiter)/Phono.  The 6AL5 performs the Noise Limiter function.

• Net weight (2.2 lb = 1 kg)
• 7.4 kg / 16 lb 4.8 oz (16.3 lb)

• Literature/Schematics (1)
• -- Other type before this -same/similar characteristics - see exchange.

• Author
• Model page created by Jim Greig. 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