• Year
  • 1963 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 168979

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

 Technical Specifications

  • Number of Transistors
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 470 kHz; 2 AF stage(s)
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Dry Batteries / 9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Roma PTR7 - EAP Tape Recorders Ltd. -
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 8.75 x 5 x 2 inch / 222 x 127 x 51 mm
  • Notes
  • Portable radio with 2 sockets for car aerial & earphone, battery type PP7. Plastic case made of Styron polystyrene, colours pacific blue or cherry red. Price 10 1/5 gns.
  • Net weight (2.2 lb = 1 kg)
  • 4 lb (4 lb 0 oz) / 1.816 kg
  • Price in first year of sale
  • 11.00 GBP
  • Source of data
  • -- Schematic
  • Author
  • Model page created by Keith Staines. See "Data change" for further contributors.

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