Radio, miracle of the 20th century ... a story of human achievement that stands unrivalled in the history of humanity, together with a colorful portrayal, giving a broad, general view of the whole subject of wireless telegraph and telephone and its marvelous development (1922)
Drinker, Frederick E. [from old catalog], Lewis, James G., [from old catalog] joint author · [Philadelphia, Printed by National publishing co.] · leaf 285
ent in the receiving circuit that has thesame frequency as that from which the wave started.These oscillations are changed in character so that theywill actuate a telephone receiver, thus making an audiblesignal. In the circuit which receives the waves is the antenna.It is exactly like the antenna… … te.,?/.
Radio
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
