• Country
• Great Britain (UK)

• Manufacturer / Brand
• Kolster Brandes Ltd. (KB, K.B., ITT); Foots Cray; GB

• Year
• 1933/1933

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 78091

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

• Number of Tubes
• 3

• Valves / Tubes
• PM12M S23 or 5B1 or 215SG PenB1 or Pen20 or PM22A or PT2 or 220HPT

• Main principle
• TRF with regeneration

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Storage and/or dry batteries / 2 & 9 & 120 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Power out
• 0.35 W (undistorted)

• Material
• Wooden case

• from Radiomuseum.org
• Model: KB 333 - Kolster Brandes Ltd. KB, K.B.,

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 440 x 336 x 263 mm / 17.3 x 13.2 x 10.4 inch

• Notes

• Tuning control (upper), Combined Volume and Reaction control (lower), Wave change MW/LW/OFF on the  left side.
  Similar to the 1933 364 and the 1934 333A and later 364 models.

  Voltages;
  HT1 (light blue) = +60V; HT2 (brown) = +99V; HT3 (dark blue) = +120V.
  GB1 (green) = -3V to -4.5V tapping: GB2 (yellow) = -6V to -9V tapping.

  HT - & Grid Bias + (Black)

  Heater + (red) = 2V
  Heater - (black)
   

   

• Price in first year of sale
• 107.00 Hfl

• Source of data
• Radio! Radio!

• Mentioned in
• Technisch- Commercieel - Radio Vademecum Staleman

• Literature/Schematics (1)
• Trader Service Sheet (suppl. of Wireless & El. Trader, etc.) (532)

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 415 models, 372 with images and 253 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kolster Brandes Ltd. (KB, K.B., ITT); Foots Cray; GB