Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity (1905)
American School (Chicago, Ill.) · Chicago : American School of Correspondence · leaf 61
engthto the rate of change of the number of lines. These currents also pass through the coil C, at the receivingend of the line, and according to the direction in wliich they flowaround the magnet Mj, alternately add to or tend to neutralize itsstrength. When the current strengthens the magnet, it… … Fig. 36. unison with the one at the transmitting end, and tlius similar vi-brations of the air are set up, reproducing the sounds spoken intothe transmitter. The above arrangrement has been somewhat modified in thetelephone of the present day, and it has lieen found more con-venient to have a…
Electrical engineering
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