Portable Transistor radio Made by Perdio Ltd.which has 6 transistors and 2 diodes AF117, AF117,AF117,OC81D,OC81,OC81,OA79 and OA91.Powered by 4 AA cells this radio covers the long and medium wavebands (1100-1940m and 187-570m). The carrying handle is missing and as received had been modified to work from an external supply (two dummy cells used to make connection to the battery contacts). Working. Made in London EC1 in 1961/2
View of interior note the reference number on the PC side of the board corresponds with the model number and the serial number is stamped on the component side.
Perdio (PERsonalraDIO) which started in 1955 was one of the earliest British transistor radio manufacturers and continued in business (latterly in Sunderland ) until 1965. For more information about the firm see: "The Setmakers" A history of the UK radio and television industry. BREMA 1991
This is one of a number of radios which belonged to the late Ron Griffiths which were given to me by his widow in 2013. Ron was was an engineer, working for himself and making parts for other firms. He made some items for the Pastorelli firm - brass cases for surveying equipment that is used in tropical climates - and also brass parts for Cambridge Instruments.