• Country
• Australia

• Manufacturer / Brand
• Stromberg-Carlson (Australasia) Pty. Ltd. Sydney

• Year
• 1933

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 165608

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

• Number of Tubes
• 6

• Valves / Tubes
• 57 58 58 55 59 80

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• 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)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Audiola 693 - Stromberg-Carlson Australasia

• Shape
• Console, Lowboy (legs < 50 %).

• Notes

• 6 valve, AC powered superhet incorporating “Visual & Silent Tuning” and muting between stations.

  Chassis is also used in the Stromberg-Carlson 633.

  CIRCUIT AND TECHNICAL DETAILS OF AUDIOLA 693
  CIRCUIT:
  Latest Stromberg-Carlson developments embodied in superheterodyne circuit.
  NEW VALVES:
  Detector Oscillator—Type 57 valve.
  Intermediate Stages, 2 Type 58 valves.
  Detector-Automatic Volume Control, Type 55 valve.
  Output, Type 59 valve.
  Rectifier, Type 280 valve.
  NEW CHASSIS:
  Retaining the same slide-in features as the Model 832, but so designed as to allow easier access to all components, thus reducing service troubles to a minimum.
  NEW COMPONENTS:
  New Drum Drive.
  New Shielding for Valves.
  New Resistors.
  New Visual Tuning Meter.
  New Escutcheon.
  NEW FEATURES:
  Visual and Silent Tuning—A Stromberg-Carlson patented development.
  Between-Stations Muting—A Stromberg-Carlson patented development.
  Automatic Volume Control.
  New Constructional Features—incorporating the new resistor and condenser panel, making servicing an easy proposition.
  NEW PACKING:
  Case having removal front and back, allowing for speedy testing without removal from case.
  NEW EYE-APPEAL:
  New shielding, giving chassis a particularly workmanlike appearance.
  NEW CABINET:
  Designed by acoustic engineers. Of particularly attractive design, finished in Queensland walnut.
  Wireless Weekly, January 12, 1933, Page 29.

• Price in first year of sale
• 33.98 Aus£

• Mentioned in
• Wireless Weekly (Australia) (26-May-1933 P6)

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

• Other Models

• Here you find 359 models, 175 with images and 183 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Stromberg-Carlson (Australasia) Pty. Ltd. Sydney