584 Ch= 510

Airzone (1931) Ltd.; Sydney

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  • Year
  • 1935/1936
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 164251

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superhet with RF-stage; ZF/IF 175 kHz; 2 AF stage(s); Reflex
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 240 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 584 Ch= 510 - Airzone 1931 Ltd.; Sydney
  • Shape
  • Console, Lowboy (legs < 50 %).
  • Notes

  • New "Airzone" Model

    Reflex Broadcast Receivers

    (RADIO RETAILER OF AUSTRALIA, 11/10/1935)

    The introduction of the 6B7S logarithmic duo-diode-pentode has extended the field of application for this type of valve to a very large extent.

    A recent commercial application is found in the new "Airzone" model 584 where one of these tubes is used as combined I.F. and A.F. amplifier, demodulator, and A.V.C voltage rectifier.

    Five valves are used in all, the first of these being a 6D6 as R.F. Amplifier. Frequency conversion is by means of a 6A7 followed by a 6B7S used as above. Output is by a 42 pentode and full-wave rectification is carried out by an 80.

    The cabinet work  is well up to Airzone's usual high standard and the sloping front panel, together with the aeroplane dial fitted, makes the appearance of the completed receiver very attractive.

    In common with other "Airzone" receivers a "control layout" is printed on the dial scale and simplifies operation considerably.

    Four controls are fitted, these being for tuning, volume, tone and sensitivity. The tone control is of the switch type and has three positions, while the sensitivity control might be termed a "local-distance" switch as it only has two positions.

    The sensitivity of this receiver is rather amazing as only a very few feet of aerial are necessary to ensure satisfactory interstate reception with minimum of noise.

    Selectivity is adequate, being quite sufficient to enable reception to be obtained from most of the stations calibrated on the dial scale, even in a fairly congested suburban location.

    A particular feature of this receiver is its ease of control, no "fiddling" being necessary to obtain the optimum results from any station tuned in. The dial calibrations are very accurate and tuning any desired programme is simply a matter of setting the dial to the position marked and adjusting the volume to the required lvel.

    Airzone (1931) Ltd., 16-22 Australia Street, Camperdown, N.S.W., are the manufacturers of this receiver, and particulars and supplies may be obtained from them or any of their interstate offices or distributors.

  • Price in first year of sale
  • 23.85 AUS £
  • Author
  • Model page created by Stuart Irwin. See "Data change" for further contributors.

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