Telegraph engineering : a manual for practicing telegraph engineers and engineering students (1922)
Hausmann, Erich, 1886- · New York : D. Van Nostrand Company · leaf 53
ted in Fig. 20. Its wind-ing has a tap at its middle point, so that if current entersat this point, it will traverse the two parts of the winding,a and b, in opposite directions, and consequently produceno magnetization in the core. The transmitter T has asmall auxiliary lever m, insulated from and… … Fig. 20. enable an operator to sever the two circuits, leaving eachcomplete in itself for simplex operation. Fig. 21 shows theWeiny-Phillips transmitter.
Telegraph
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
