• Year
  • 1962
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 169423
    • alternative name: Ultra Radio and Television

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

 Technical Specifications

  • Number of Transistors
  • 8
  • Main principle
  • Superheterodyne (common); ZF/IF 471 kHz; 3 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)     10 FM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and FM or UHF.
  • Power type and voltage
  • Dry Batteries / 6 x 1.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm
  • from Radiomuseum.org
  • Model: TR81A - Ultra Electric Ltd.; London
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Notes
  • Portable radio with sockets for external aerial, record/tape input, & external speaker.
  • Source of data
  • -- Schematic
  • Author
  • Model page created by Keith Staines. See "Data change" for further contributors.

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