Rational Straight Eight 27

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
  • 167174

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 462.5 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) / 200; 220; 240; 260 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Rational Straight Eight 27 - Briton Electrical & Radio Pty.
  • Shape
  • Console with Push Buttons.
  • Notes

  • RATIONAL EIGHT RADIO by BRITON
    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 a Vibrator operated version, Model 28.

  • 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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