• Country
• Great Britain (UK)

• Manufacturer / Brand
• Perdio Electronics Ltd. / Products Ltd.; London, Stanmore

• Year
• 1962 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 102482

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

• Number of Transistors
• 9

• Semiconductors
• AF102 AF115 AF116 AF116 AF116 OC71 OC81D OC81 OC81

• Main principle
• Superheterodyne (common); ZF/IF 470/10700 kHz

• Wave bands
• Broadcast, Long Wave and FM or UHF.

• Power type and voltage
• Dry Batteries / 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Knightsbridge PR40 - Perdio Electronics Ltd. /

• Shape
• Portable set > 8 inch (also usable without mains)

• Mentioned in
• -- Original-techn. papers.

• Author
• Model page created by Peter Hoddow. See "Data change" for further contributors.

• Other Models

• Here you find 63 models, 53 with images and 39 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Perdio Electronics Ltd. / Products Ltd.; London, Stanmore