• Country
• Great Britain (UK)

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

• Year
• 1951

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 104737

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

• Number of Tubes
• 6

• Valves / Tubes
• 6BA6 6BE6 6BA6 6AT6 6V6GT 6X4

• Main principle
• Superhet with RF-stage; ZF/IF 422 kHz

• Wave bands
• Broadcast, Long Wave and more than two Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 100-120; 200-220; 230-250 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm

• Power out
• 3 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: GR40 - Kolster Brandes Ltd. KB, K.B.,

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 580 x 360 x 228 mm / 22.8 x 14.2 x 9 inch

• Notes

• One example seen is fitted with an 10.25 x 6 inch elliptical speaker (appears original)

  10 band superhet with 7 bandspread ranges.

  LW band 130 to 300kHz
  MW band 536 to 1600 MHz
  SW band 1.6 to 5.1MHz
   
  49 m band 5.95 to 6.3 MHz
  42 m band 7.0 to 7.4 MHz
  31 m band 9.35 to 9.9 MHz
  25 m band 11.5 to 12.1 MHz
  19 m band 14.8 to15.8 MHz
  16 m band 17.2 to 18.4 MHz
  13 m band 20.8 to 22.4 MHz

  See also Kolster Brandes GR40T

• Mentioned in
• -- Original-techn. papers.

• Literature/Schematics (1)
• Trader Service Sheet (suppl. of Wireless & El. Trader, etc.) (1033)

• Author
• Model page created by Peter Hoddow. 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