• Year
  • 1977/1978
  • Category
  • Television Receiver (TV) or Monitor
  • Radiomuseum.org ID
  • 332860
    • Brand: TRF

 Technical Specifications

  • Number of Tubes
  • 1
  • Valves / Tubes
  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • VHF incl. FM and/or UHF (see notes for details)
  • Power type and voltage
  • Line plus power jack, mostly with battery or storage battery / 240 / 12 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Power out
  • 1 W (unknown quality)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Mains/Battery Portable Television 3848 - Ferguson Brand, Ferguson Radio
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Notes
  • A mains/battery portable monochrome 12 inch television with a 625 line GB standard UHF tuner housed in a plastic cabinet.

    Specification  
    Frequency Coverage Channels 21-68,
    471.25MHz - 847.25MHz (Vision carriers)
    Vision IF Frequencies  
     Adjacent channel vision
     Sound Carrier
     Vision Carrier
     Adjacent Channel Sound
    31.5MHz
    33.5MHz
    39.5MHz
    41.5MHz
    Sensitivity 14 µV at AGC threshold
    Audio Output 1 watt (music power) into 8Ω
    Loudspeaker 5 x 3 inch
    EHT 11.5kV at zero beam current
    Picture Tube 12-inch model: TMT31-102
    Power Supplies 240V AC or 12V DC
    Power Consumption Mains operation, 32 watts;
    Battery operation, 18 watts (1.45A)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Thorn Service manual 1690 1691 Series 1977-1978)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum