• Year
  • 1937/1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 95878

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 464 kHz
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 200-260 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: KB 650 - Kolster Brandes Ltd. KB, K.B.,
  • Shape
  • Tablemodel, slant panel.
  • Dimensions (WHD)
  • 413 x 358 x 320 mm / 16.3 x 14.1 x 12.6 inch
  • Notes
  • The radio features an "Alphadex" tuning dial, this is designed so it has an alphabetical lookup for each of the radio stations.

    "Up-to-the-minute in technical design, the K B 650 incorporates several exclusive KB features. It will give excellent reception from stations in all parts of the world with reproduction of wonderfully realistic quality on all wave-bands. An outstanding example of KB value."

    Wave-ranges : I6.5-50, l95-550. 970-2300 metres.
    6 tuned circuits. “Whistle" eliminating input circuit. Illuminated three colour “Alphadex" tuning scale designed so it has an alphabetical lookup for each of the radio stations. Two-speed tuning. Sockets for gramophone pick-up. Volume control effective for radio and gramophone
    reproduction. Provision for external speaker. 8 in. high-fidelity moving coil speaker.
    Output 3 watts.
    200-250 volts A.C., 40-60 cycles.
    Walnut cabinet of distinctive modern design with figured centre panel and attractive controls. Dimensions: 14⅜ in. high, 16¼ in. wide, 12¾ in. deep.
    May be used with KB All-Wave “Rejectostat” aerial.


    See also KB 652

  • Price in first year of sale
  • 142.00 Hfl
  • Author
  • Model page created by John Koster. See "Data change" for further contributors.

 Collections | Museums | Literature


The model is part of the collections of the following members.