Telegraph engineering : a manual for practicing telegraph engineers and engineering students (1922)
Hausmann, Erich, 1886- · New York : D. Van Nostrand Company · leaf 183
Rings i, 2 and 3 connect to battery^ sothat brush b and the upper Hne wire may have a potentialwith respect to the other Kne wire of say + 50, + 30 or — 30 volts respectively. Similarly, rings 4, 5 and 6 con-nect to battery B^ so that brush b^ and junction x may havea potential with respect to… … ^iji1]i|ii1!||iiJIh#^ Fig. 4. specially-designed receiver to produce in script the variousletters and figures. The receiving instrument resembles two telephoiie re-ceivers (R and R\ Fig. 4) whose diaphragms are placedin one plane. In front of the diaphragms is mounted apermanent magnet, from the…
Telegraph
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