Telephone Construction, Installation, Wiring, Operation and Maintenance: A Practical Reference Book and Guide for Electricians, Wiremen, Engineers, Contractors, Architects, and Others Interested in Standard Telephone Practice...N. W. Henley publishing Company, 1908 - 171 стор. |
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Сторінка iii
... wiring them ; the means of protecting them from lighting and abnormal currents ; their connection together for opera- tion as series or bridging stations ; and rules for their inspection and maintenance . Line wiring , and the wiring ...
... wiring them ; the means of protecting them from lighting and abnormal currents ; their connection together for opera- tion as series or bridging stations ; and rules for their inspection and maintenance . Line wiring , and the wiring ...
Сторінка 10
... line , carbon of one form or another , as shown at c in Fig . 8 , be placed in series with a battery b and an induction coil ps , sound waves of a voice striking against the diaphragm d will cause varying pressures in the carbon and 10.
... line , carbon of one form or another , as shown at c in Fig . 8 , be placed in series with a battery b and an induction coil ps , sound waves of a voice striking against the diaphragm d will cause varying pressures in the carbon and 10.
Сторінка 17
... circuit for the transmitter entirely independent of the line circuit makes the variations in the resistance of the carbon large in comparison with the total resistance of the circuit . in which it is connected , and therefore makes the ...
... circuit for the transmitter entirely independent of the line circuit makes the variations in the resistance of the carbon large in comparison with the total resistance of the circuit . in which it is connected , and therefore makes the ...
Сторінка 26
... line between them is called the blue line , and the name " gravity cell " results from the part gravity plays in the perform- ance of the liquids . The internal resistance can be reduced , and the cell made immediately avail- able for ...
... line between them is called the blue line , and the name " gravity cell " results from the part gravity plays in the perform- ance of the liquids . The internal resistance can be reduced , and the cell made immediately avail- able for ...
Сторінка 28
... Circuit is shown in Fig . 19 ; that is , the earth or ground is used as one con- ductor between the two stations a and b , in place of one of the line wires . Either a grounded circuit or a two - wire ( complete metallic ) circuit 28.
... Circuit is shown in Fig . 19 ; that is , the earth or ground is used as one con- ductor between the two stations a and b , in place of one of the line wires . Either a grounded circuit or a two - wire ( complete metallic ) circuit 28.
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Telephone Construction, Installation, Wiring, Operation and Maintenance: A ... Harry Cooke Cushing Попередній перегляд недоступний - 2017 |
Telephone Construction, Installation, Wiring, Operation and Maintenance: A ... Harry Cooke Cushing Попередній перегляд недоступний - 2018 |
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Загальні терміни та фрази
50 cents alternating current ampere armature binding posts bolted Bridging Connection Bridging Station cable called carbon blocks clearing-out drop complete metallic circuit conductors Construction copper wire cord core cross-arms desk set diaphragm distributing board Dry Cell electrical electromotive force engines exchange switchboard extension bell fastened feet fuse gage ground heat coil hole hook switch inch induction coil insulated iron wire jack latter Leclanché cell lightning arrester line circuit line drop line wires listening key machine magneto bell mechanical mounted ohms operator party party-line systems placed plate plug pole porous cup position PRACTICAL BOOKS primary winding Protective Apparatus receiver ring the bell ringer ringing key rubber series station shown in Fig shows shunt side signaling sleeve soldered solid-back spring steel switch arm talking circuit talking current tele Telephone Circuit tested threads tion transmitter usually vibrations volts wall set wound zinc