Telephone, Wireless

The thermionic valve and its developments in radio-telegraphy and telephony

by J. A. Fleming.

Empire communication.

Sir Edward Victor Appleton

Detecting efficiency of the resistance-capacity coupled amplifier to 6000 meters ...

By W. G. Brombacher.

Wireless telegraphy and wireless telephony

Charles Grinnell Ashley

Radio telephony

by Alfred N. Goldsmith.

Report of the Federal trade commission on the radio industry: in response to House Resolution 548, Sixty-seventh Congress, fourth session. December 1, 1923.

United States. Federal Trade Commission.

Thermionic tubes in radio telegraphy and telephony

by John Scott-Taggart.

The story of broadcasting

by A.R. Burrows.

The thermionic valve and its developments in radio-telegraphy and telephony

by J. A. Fleming.

Radiotelephone (maritime services) handbook.

Canada. Dept. of Transport.