Marconi Wireless Telegraph A Short History
Modern Radio Servicing Ghirardi 1935
Radio Hook-ups (1922) Sleeper
Frequency Control With Quartz Crystals Bliley Electric 1940
The Home Radio How To Make Verrill 1922
A Chronological History of Electrical Development 1946 NEMA
An All Wave Radio 30s
Simplicity of Radio Powell Crosley 1924
