• Country
• Great Britain (UK)

• Manufacturer / Brand
• GEC, General Electric Co Ltd., GENALEX; London

• Year
• 1950

• Category
• Television Receiver (TV) or Monitor

• Radiomuseum.org ID
• 198368

• • Brand: Gecophone

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

• Number of Tubes
• 21

• Valves / Tubes
• Z77 L63 Z77 Z77 Z77 D77 Z77 Z77 L63 L63 EL38 U37 W77 DH77 D77 KT61 L63 KT61 MU14 MU14 6703_CRT

• Main principle
• Superheterodyne (common)

• Wave bands
• Wave Bands given in the notes.

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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: BT4640 - GEC, General Electric Co Ltd.,

• Shape
• Console, Lowboy (legs < 50 %).

• Notes
• 12 inch 405 line b/w console TV set with single channel VHF band I tuner. Can be converted to receive either London or Birmingham TV frequencies by the addition or removal of 5 wire links. Also a fringe model, the BT4640C.

• Literature/Schematics (1)
• Trader Service Sheet (suppl. of Wireless & El. Trader, etc.) (sheet 1019/T19)

• Author
• Model page created by Howard Craven. See "Data change" for further contributors.

• Other Models

• Here you find 443 models, 287 with images and 237 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from GEC, General Electric Co Ltd., GENALEX; London