• Country
• Australia

• Manufacturer / Brand
• Amalgamated Wireless (Australasia) Ltd. (AWA); Sydney

• Year
• 1934

• Category
• Car Radio, perhaps also + sound player/recorder

• Radiomuseum.org ID
• 210418

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

• Number of Tubes
• 4

• Valves / Tubes
• 78 6A7 6B7 42

• Main principle
• Superhet with RF-stage; ZF/IF 175 kHz

• 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 5 inch = 12.7 cm

• Material
• Metal case

• from Radiomuseum.org
• Model: Radiola R74 Ch=C128 - Amalgamated Wireless

• Dimensions (WHD)
• 9.75 x 8 x 5.375 inch / 248 x 203 x 137 mm

• Notes

• 4 valve, reflexed superhet with RF stage, 6V vibrator powered, car radio.

  The radio consists of three units.

  • Control Head, for mounting on the steering wheel housing with tuning and volume connected to the radio box with Bowden cables.
  • Radio Box, which contains the radio receiver on a Radiolette R27 chassis, less power transformer and rectifier.
  • Power Supply Box containing a 6V synchronous vibrator.

• Mentioned in
• Wireless Weekly 19/1/34 P23.

• Literature/Schematics (1)
• HRSA Radio Waves Magazine No. 153, Jul 2020, Page 25

• Literature/Schematics (2)
• Radio Waves, No. 149, July 2019, Page 30.

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

• Other Models

• Here you find 1430 models, 873 with images and 463 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Amalgamated Wireless (Australasia) Ltd. (AWA); Sydney