Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 347
Station 2 Seconoarv Seconoary … gig E±i K Fig. 297.—Connections of a Telephone System for Two Stations.Blake microphones are used as transmitters and Bell telephones as receivers. telephone, become materially weakened when they have toflow over lines of considerable length and resistance, so thatthe sounds in many cases become…
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
