American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 232
enser resistance, c is a static compen=sating condenser, r is the compensating rheostat, or artificial line, resistance. A s isa 3-point switch, used in going to ground for a balance. More frequently aspecial form of switch is used in connection with the cutting oif of the dynamos.It is shown in… … POLAR DUPLEX TERJJlNAL CONNECTIONS (DYNAMO KKV SYSTEM. CHAPTER XII. QUADRUPLEX TELEGRAPHY. A quadruplex telegraph system is one by which four messages may be trans-mitted over one wire at the same time, two from eacli end, simultaneously. There are several multiplex systems extant by which two,…
Telegraph
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