• Country
• Great Britain (UK)

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

• Year
• 1933

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 78093

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

• Number of Tubes
• 6

• Valves / Tubes
• 9A1 8A1 9A1 11A2 7A2 R2

• Main principle
• Superhet with RF-stage; ZF/IF 130 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 200-250 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm

• Power out
• 3 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Rejectostat KB 666 - Kolster Brandes Ltd. KB, K.B.,

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

• Dimensions (WHD)
• 25 x 14.5 x 10.5 inch / 635 x 368 x 267 mm

• Notes
• Available with stand. Walnut cabinet, black fittings & diamond speaker aperture. Micromesh valves, alternative Mullard valves are VP4, SP4, VP4, TDD4, Pen4VA, DW3. Same chassis used in models K-B 666A, B, & C. Provision for fitting short wave converter K-B357. Recommended aerial length 75-100 feet with "Rejectostat" system.

• Net weight (2.2 lb = 1 kg)
• 40 lb (40 lb 0 oz) / 18.160 kg

• Source of data
• Radio! Radio!

• Literature/Schematics (1)
• Trader Sheets 13 & 568

• 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