• Country
• Australia

• Manufacturer / Brand
• Kriesler Radio Company; Newtown (Sydney)

• Year
• 1947–1951

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 185041

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

• Number of Tubes
• 5

• Valves / Tubes
• ECH33 or ECH35 1M5G 1M5G 1K7G 1L5G

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 8 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) / Ø 6 inch = 15.2 cm

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 31-4A Ch= 31-4 - Kriesler Radio Company;

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 405 x 260 x 275 mm / 15.9 x 10.2 x 10.8 inch

• Notes

• Kriesler advertised this set & other post-war models as a "Sealed Radio". Solder joints were marked to prevent unauthorised servicing & tampering.

  • CIRCUIT: As on 31-4 circuit.
  • COIL KIT: Part No. 15-12 (AWA Tuning Condenser).
  • DIAL GLASS: Part No. 50-28.
  • SPEAKER: Part No. 70-22 (6" Permanent Magnet Type).
  • OUTPUT TRANSFORMER: Part No. 18-37.
  • VIBRATOR TRANSFORMER: Part No. 18-4.

  PROCEDURE FOR REMOVING CHASSIS FROM CABINET.

  1. Invert receiver, break seal and remove cabinet base by unscrewing 4 x No. 6 Self-Tapping screws.
  2. Remove speaker plug from socket in rear of chassis.
  3. Remove 4 x No. 10 x ⅜" long Self-Tapping screws located in four cporners of inside of chassis.
  4. Receiver may now be withdrawn from cabinet.

  NOTE. - It is not necessary to remove knobs from control spindles of this receiver (unless so desired) in order to remove receiver from cabinet. Knobs fitted to this receiver are push-on type and removal of same is accomplished by pulling knob off control spindle.

  This model uses the same cabinet design as the model 11-7 but has an extra knob. It uses a synchronous vibrator power unit.

• Price in first year of sale
• 37.80 AUS £

• Circuit diagram reference
• Australian Official Radio Service Manual Vol. VI

• Literature/Schematics (1)
• - - Manufacturers Literature (Kriesler Technical Service Instructions.)

• Literature/Schematics (2)
• Australian Official Radio Service Manual AORSM (Volume 6, 1948, Page 273.)

• Literature/Schematics (3)
• Mingay's "Radio Diagram & I.F. Index

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

• Other Models

• Here you find 895 models, 440 with images and 435 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kriesler Radio Company; Newtown (Sydney)