Libri di wireless telegraph

Masters of Space

Nikola Tesla on his work with alternating currents and their application to wireless telegraphy, telephony, and tranmission of power

Radio engineering principles

Beneath the red star

Principles and practice of multi-frequency telegraphy

The early history of radio

Solnechnoe veshchestvo ; Luchi IKS ; Izobretateli radiotelegrafa

Wireless telegraphy