F C Judd formed a company to supply sounds and effects to home audiences, and the Castle record label was born – the first run of 7” records appeared in 1963 made available through ATR. ( Amateur Tape Recording Magazine ) He established FC. Judd Sound Recording that same year, as an outlet for his electronic music in popular and commercial fields.
Castle, Contrast Sound Productions and Recorded Tuition Limited were established and run by Fred and business partner John Ratcliff, and issued 3 Eps of electronic music; many of these tracks were collected as a library album Electronic Age released by Studio G in 1970. - See more at: http://www.fcjudd.co.uk/#sthash.1y7UXZaI.dpuf