• Country
• Australia

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

• Year
• 1943

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 196838

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

• Number of Tubes
• 6

• Valves / Tubes
• 6J8G 6J8G 6J8G 6V6G 6U5 or 6G5 6X5GT

• Main principle
• 1 AF stage(s)

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 220; 240; 260 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Beat Frequency Oscillator 4R7077 - Amalgamated Wireless

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 12 x 8 x 8 inch / 305 x 203 x 203 mm

• Notes

• This is a beat frequency oscillator which produces an audio output signal from 0 to 13 kHz. The tuning indicator is used to show zero beat.

  The unit was supplied with a transport case which had facilities to carry a complete set of replacement valves, see photo.

• Net weight (2.2 lb = 1 kg)
• 24 lb (24 lb 0 oz) / 10.896 kg

• Mentioned in
• Silicon Chip December 2011

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

• Other Models

• Here you find 1421 models, 846 with images and 453 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Amalgamated Wireless (Australasia) Ltd. (AWA); Sydney