• Year
  • 1964–1967
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 89976

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
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Dry Batteries / 9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical / Ø 6 inch = 15.2 cm
  • Power out
  • 0.5 W (unknown quality)
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: R300 - Roberts Radio Co.Ltd., East
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 230 x 150 x 100 mm / 9.1 x 5.9 x 3.9 inch
  • Notes
  • Elliptical loudspeaker 6 x 4 inch.
  • Net weight (2.2 lb = 1 kg)
  • 1.7 kg / 3 lb 11.9 oz (3.744 lb)
  • Literature/Schematics (1)
  • -- Original-techn. papers.
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum