Inside Out Library

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 236

An illustration from 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, leaf 236
EXAMPLE OF DIRECT COUPLING. or current would naturally travel to the ground. The sec-ondary circuit is that by which the waves or current aredeployed or diverted from the primary so that they travelaround the secondary and back again to the main circuit,and thence over their natural course to the… … EXAMPLE OF INDUCTIVE COUPLING. direct connection the secondary circuit is tied into theprimary forming two junctions with the primary—onewhere it begins and the other where it ends. In an induc-tive coupling the primary circuit is physically undis-14 210 RADIOTELEPHONY turbed. The secondary circuit…

Radio

Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.

More pictures from 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

More like this