• Year
  • 1939
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 78794
    • alternative name: Ultra Radio and Television

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 470 kHz
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 200-250 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 309 - Ultra Electric Ltd.; London
  • Shape
  • Tablemodel with Push Buttons.
  • Dimensions (WHD)
  • 17 x 17 x 8.25 inch / 432 x 432 x 210 mm
  • Notes
  • Eight push buttons, five for pre-set radio stations (3 on MW, 2 on LW), and three for manual waveband switching. The same chassis is fitted in the Ultra 310 console radio.

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