Rational Straight Eight 28

Briton Electrical & Radio Pty. Ltd ("Rational Radio"); Sydney, NSW.

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  • Year
  • 1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 167172

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Number of Transistors
  • Main principle
  • Superheterodyne (common); ZF/IF 462.5 kHz; 3 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast and Short Wave (SW).
  • 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)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Rational Straight Eight 28 - Briton Electrical & Radio Pty.
  • Shape
  • Console with Push Buttons.
  • Notes

  • RATIONAL EIGHT RADIO by BRITON
    For the first time in Australia a vibrator-operated batteryless Push-Button Receiver.
    True Automatic Tuning for vibrator-operated battery!ess re-
    ceivers is a new departure in radio design and engineering,
    conceived and developed in the Laboratories of Rational Radio.Gives you TRUE AUTO-TUNING...The Stations You Want The Moment You Want Them...
    NO MOTOR, NO WEARING PARTS—THUS NO INTERFERENCE WITH RECEPTION.
    Below the dial are eight buttons, each clearly marked with the
    station callsign. You simply press a button, and there’s your
    station. No buzzing—no waiting—no fiddling. Each station is
    fixed-tuned to HAIRLINE ACCURACY in the Rational
    Laboratory and “reception-tested” for eight hours before the
    set is despatched. This automatic tuning is additional to the
    usual manual tuning facilities for both Australian and Overseas
    Stations.
    Wireless Weekly Mar 25, 1938, Cover.

    Also available in an AC powered version, Model 27.

  • Circuit diagram reference
  • Australian Official Radio Service Manual Vol. I I
  • Author
  • Model page created by Stuart Irwin. See "Data change" for further contributors.

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