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 2
... joining the terminals of the coils c and r together as in Fig . 1. The variation in the electromotive force produced in the coil c will now cause a varying current of electricity in the coil r of telephone B , and this in turn will ...
... joining the terminals of the coils c and r together as in Fig . 1. The variation in the electromotive force produced in the coil c will now cause a varying current of electricity in the coil r of telephone B , and this in turn will ...
Сторінка 20
... joining with a copper wire the positive plate of one cell to the negative plate of the other , the remaining plates of the two cells serving at the terminals of the battery . When thus connected the total voltage is the sum of the ...
... joining with a copper wire the positive plate of one cell to the negative plate of the other , the remaining plates of the two cells serving at the terminals of the battery . When thus connected the total voltage is the sum of the ...
Сторінка 45
... joined to the interior circuits of the tele- phone set and to the line wires as already ex- plained . If , then , a lightning discharge comes in m n u der e S h on either of the line wires , its high voltage enables it to jump the short ...
... joined to the interior circuits of the tele- phone set and to the line wires as already ex- plained . If , then , a lightning discharge comes in m n u der e S h on either of the line wires , its high voltage enables it to jump the short ...
Сторінка 46
... joined in series upon a line , and the ringing current from any one of them will operate all of the bells simultaneously . The magnet coils of ringers in series tele- phone sets are , there- fore , wound to as low a resistance as ...
... joined in series upon a line , and the ringing current from any one of them will operate all of the bells simultaneously . The magnet coils of ringers in series tele- phone sets are , there- fore , wound to as low a resistance as ...
Сторінка 47
... joined together as indicated . Fig . 35 shows 4 series telephone sets wired in series on a complete me- tallic circuit . The ground is then used only for the light- ning - arrester nections . con- The Interior Wir- ing Between the Tel ...
... joined together as indicated . Fig . 35 shows 4 series telephone sets wired in series on a complete me- tallic circuit . The ground is then used only for the light- ning - arrester nections . con- The Interior Wir- ing Between the Tel ...
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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 |
Telephone Construction, Installation, Wiring, Operation and Maintenance: A ... Harry Cooke Cushing Попередній перегляд недоступний - 2018 |
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