• Year
  • 1960
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 152104
    • alternative name: Ultra Radio and Television

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

 Technical Specifications

  • Number of Transistors
  • 9
  • Main principle
  • Superheterodyne (common); ZF/IF 471/10700 kHz; 3 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)     8 FM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and FM or UHF.
  • Power type and voltage
  • Dry Batteries / 2 x 9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Rio TR81 - Ultra Electric Ltd.; London
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 250 x 163 x 95 mm / 9.8 x 6.4 x 3.7 inch
  • Net weight (2.2 lb = 1 kg)
  • 4 lb 0 oz (4 lb) / 1.816 kg
  • Price in first year of sale
  • 22.00 GBP
  • Source of data
  • -- Schematic
  • Circuit diagram reference
  • Radio and TV Servicing books (R&TVS) book
  • Literature/Schematics (1)
  • Trader Sheet 1543
  • Author
  • Model page created by Keith Staines. See "Data change" for further contributors.

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The model Rio is part of the collections of the following members.

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