Wireless World magazine - May 1960 - Volume 66 No. 5
480+ The Short Wave Magazine's *1937-1979* (DVD) + Listener Wireless World Radio
Modern Wireless + Wireless Constructor Magazine's (DVD) Ham Radio Amateur
Wireless World magazines - 7 from 1961 - Volume 67 Nos. 1, 3, 6, 7, 9, 10 & 12
Radio Designer's Handbook . Third Edition Published By Wireless World.
Modern World Magazine 1940
