• Year
  • 1937
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 162837

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common); ZF/IF 460 kHz; 2 AF stage(s); Reflex
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / 6 & -1.5 & -4.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 447MV - Bandmaster: Sydney
  • Shape
  • Console, Lowboy (legs < 50 %).
  • Notes
  • 4 valve, broadcast only receiver using the standard complement of 2 Volt  battery valves powered from a  synchronous vibrator power pack. 

    It was advertised in its day as a "Battery Less" radio as it did not require B batteries. However a 6 Volt accumulator was required to run the vibrator to produce the B voltage and 4.5 Volt dry battery, tapped at -1.5 Volts to supply grid bias for the 1K6 and 1D4.

    Chassis same as AWA model 42V.

  • Price in first year of sale
  • 29.00 Aus£
  • Circuit diagram reference
  • Australian Official Radio Service Manual Vol. I
  • Author
  • Model page created by Stuart Irwin. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum