• Country
• Great Britain (UK)

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

• Year
• 1961

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 79482

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

• Number of Transistors
• 7

• Semiconductors
• OC44 OC45 OC45 OC71 OC81D OC81 OC81

• 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) / Ø 4 inch = 10.2 cm

• Power out
• 0.35 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: PR25 - Perdio Electronics Ltd. /

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

• Dimensions (WHD)
• 10 x 7 x 3.5 inch / 254 x 178 x 89 mm

• Notes
• Released March 1961 price £13 19s 6d. Released as a kit in 1965 called the 'Realistic Seven' price £5 19s 6d.

• Net weight (2.2 lb = 1 kg)
• 1 kg / 2 lb 3.2 oz (2.203 lb)

• Price in first year of sale
• 14.00 GBP

• Source of data
• Radio! Radio!

• Literature/Schematics (1)
• - - Manufacturers Literature

• Literature/Schematics (2)
• Trader sheet 1586

• Author
• Model page created by Konrad Birkner † 12.08.2014. 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