• Country
• Great Britain (UK)

• Manufacturer / Brand
• Colben Radio & Engineering Co Ltd; Kent

• Year
• 1955 ??

• Category
• Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter

• Radiomuseum.org ID
• 136392

• Number of Tubes
• 2

• Valves / Tubes
• EC91 12AT7

• Main principle
• RF Converter/Adapter (not voltage converter)

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 200-210; 220-230; 240-250 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Television Band III Converter - Colben Radio & Engineering Co

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 7 x 5.25 x 6 inch / 178 x 133 x 152 mm

• Notes
• Converted ITV transmissions on Band III (174-230 MHz) to Band I, Channel 1 (41.5/45 MHz).
  To enable TRF Televisons (BBC only) to receive new Independant T.V. stations. This was for 405 line sets prior to 625 line UHF transmissions.
  Set has 2 aerial sockets for Band I & Band II aerials.

• Source of data
• - - Data from my own collection

• Author
• Model page created by Keith Staines. See "Data change" for further contributors.

• Other Models

• Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Colben Radio & Engineering Co Ltd; Kent