• Country
• Great Britain (UK)

• Manufacturer / Brand
• Beethoven (Brand), Montague Radio Inventions, Beethoven Radio, Beethoven Electric Equipment; London, Manchester

• 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.

• Number of Tubes
• 4

• Valves / Tubes
• DK1 DF1 DAC1 DL2

• 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.

• Other Models

• Here you find 46 models, 23 with images and 26 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Beethoven (Brand), Montague Radio Inventions, Beethoven Radio, Beethoven Electric Equipment; London, Manchester