• Year
  • 1932
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 294287

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • TRF with regeneration
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: KB 310 - Kolster Brandes Ltd. KB, K.B.,
  • Notes
  • Battery voltage details:
    Green lead HT1 = +70 to 90 volts
    Yellow lead HT2 = +80 to 100 volts
    Blue lead HT3 = +120 volts
    Brown lead = HT-

    Red lead LT+ = +2 volts
    Black lead LT-

    Automatic biasing, Gramophone socket

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