57A

Healing, A.G., Ltd.; Melbourne

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  • Year
  • 1937
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 163918

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Number of Transistors
  • Main principle
  • Superhet with RF-stage; ZF/IF 180 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • 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) / Ø 6.5 inch = 16.5 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 57A - Healing, A.G., Ltd.; Melbourne
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 18.5 x 12.25 x 9 inch / 470 x 311 x 229 mm
  • Notes

  • This 5-Valve “Compact” battery-less receiver is economically operated from a 6-volt standard battery only, “B” and “C” battery costs are eliminated. It has simple control, full-size rainbow dial, latest valves, automatic volume control, special permanent magnet dynamic speaker, and super-sensitivity.

    Because of higher output than ordinary battery receivers, there is greater power and range for all country and interstate reception.

    Uses synchronous vibrator power unit.

  • Price in first year of sale
  • 28.35 AUS £
  • Circuit diagram reference
  • Australian Official Radio Service Manual Vol. I
  • Mentioned in
  • -- Original prospect or advert (Chronicle (SA) Mar 25, 1937, Page 43)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Healing Service Manual, Page 109.)
  • Author
  • Model page created by Stuart Irwin. See "Data change" for further contributors.

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