• Country
• Great Britain (UK)

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

• Year
• 1937/1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 95875

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

• Number of Tubes
• 3

• Valves / Tubes
• VP2 PM2HL PM22A

• Main principle
• TRF with regeneration

• Wave bands
• Broadcast, Long Wave and Short Wave.

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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: KB 620 - Kolster Brandes Ltd. KB, K.B.,

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

• Dimensions (WHD)
• 21 x 13 x 10.75 inch / 533 x 330 x 273 mm

• Notes

• The KB 620 is a medium-priced battery receiver capable of real world-wide reception, thoroughly reliable in operation and inexpensive in use. The three wave ranges cover most of the broadcasting stations of the world as well as many commercial, aircraft, marine and amateur radio transmissions of exceptional interest.
  Wave-ranges: 18.5-52, 200-550, 900-2,000 metres.
  Band-pass input circuit for long and medium waves. Special aerial and anode circuits for short waves. “Local-Distant" switch. Composite slow-motion tuning control and wave-range switch. 3-colour full-vision dial. Combined volume control and “on-and-ofl’" switch. Separate sensitivity control. 8in. P.M. moving-coil speaker.
  Drydex combined 120 volt H.T. and 9 volt grid bias battery. Exide 2 volt accumulator.
  Handsome horizontal cabinet with front panel of walnut and sycamore.
  Dimensions: 21 in. long, 13 in. high, 10.75 in. deep. May be used with KB All-Wave “Rejectostat” aerial.

  PRICE: 8 GUINEAS including batteries.

• Price in first year of sale
• 11.55 GBP

• Source of data
• Technisch- Commercieel - Radio Vademecum Staleman

• Literature/Schematics (1)
• Trader Service Sheet (suppl. of Wireless & El. Trader, etc.) (241)

• Author
• Model page created by John Koster. 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