• Country
• Australia

• Manufacturer / Brand
• Briton Electrical & Radio Pty. Ltd ("Rational Radio"); Sydney, NSW.

• Year
• 1939

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 173946

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

• Number of Tubes
• 1

• Valves / Tubes
• KDD1

• Wave bands
• - without

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: B49 - Briton Electrical & Radio Pty.

• Notes
• This power supply unit uses a non-synchronous vibrator with the KDD1 used as a full wave rectifier.

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

• Author
• Model page created by Stuart Irwin. See "Data change" for further contributors.

• Other Models

• Here you find 82 models, 13 with images and 53 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Briton Electrical & Radio Pty. Ltd ("Rational Radio"); Sydney, NSW.