• Year
  • 1939
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 172446

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 450.5 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Dry Batteries / 1,5 & 90 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 16.5 cm = 6.5 inch
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: Little Prodigy 909 Battery - Beethoven Brand, Montague
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 240 x 260 x 140 mm / 9.4 x 10.2 x 5.5 inch
  • Notes
  • Appearance resembles the 909 AC model.
  • Literature/Schematics (1)
  • Trader Service Sheet 449
  • Author
  • Model page created by Hans De Seijn. See "Data change" for further contributors.

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