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31-4A Ch= 31-4

31-4A Ch= 31-4; Kriesler Radio (ID = 846985) Radio
31-4A Ch= 31-4; Kriesler Radio (ID = 846986) Radio 31-4A Ch= 31-4; Kriesler Radio (ID = 2339351) Radio
31-4A Ch= 31-4; Kriesler Radio (ID = 2339352) Radio 31-4A Ch= 31-4; Kriesler Radio (ID = 2339353) Radio
31-4A Ch= 31-4; Kriesler Radio (ID = 2429697) Radio
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31-4A Ch= 31-4; Kriesler Radio (ID = 846986) Radio
Kriesler Radio: 31-4A Ch= 31-4 [Radio] ID = 846986 862x700
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For model 31-4A Ch= 31-4, Kriesler Radio Company; Newtown (Sydney):
Kriesler 31-4
Country:  Australia
Manufacturer / Brand:  Kriesler Radio Company; Newtown (Sydney)
Year: 1947–1951 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: ECH33 or ECH35 1M5G 1M5G 1K7G 1L5G
Main principle Super-Heterodyne (Super in general); 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
Power out
from Model: 31-4A Ch= 31-4 - Kriesler Radio Company;
Material Bakelite case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 405 x 260 x 275 mm / 15.9 x 10.2 x 10.8 inch

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.


  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 Receiver may now be withdrawn from cabinet.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

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

All listed radios etc. from Kriesler Radio Company; Newtown (Sydney)
Here you find 791 models, 244 with images and 321 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.