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. |
З цієї книги
Результати 1-5 із 23
Сторінка 4
... copper wire to a resistance of 75 ohms , and its terminals are connected to the binding posts m and o by No. 18 or 20 B. & S. gage cotton - covered copper wire which is soldered to them . The mag- net should have sufficient power to ...
... copper wire to a resistance of 75 ohms , and its terminals are connected to the binding posts m and o by No. 18 or 20 B. & S. gage cotton - covered copper wire which is soldered to them . The mag- net should have sufficient power to ...
Сторінка 5
... are FIG . 4. - Method of Winding the Magnets for a Double- Pole Receiver nected in series and are wound in opposite direc- tions as in Fig . 4 , with No. 36 or 38 B. & S. gage silk - covered copper wire to a resistance depending 5.
... are FIG . 4. - Method of Winding the Magnets for a Double- Pole Receiver nected in series and are wound in opposite direc- tions as in Fig . 4 , with No. 36 or 38 B. & S. gage silk - covered copper wire to a resistance depending 5.
Сторінка 6
... copper wire to a resistance depending upon the conditions of service . For local battery work , such as book , the resistance of the considered in this receiver is usually from 100 to 125 ohms ( see Appendix ) divided equally between ...
... copper wire to a resistance depending upon the conditions of service . For local battery work , such as book , the resistance of the considered in this receiver is usually from 100 to 125 ohms ( see Appendix ) divided equally between ...
Сторінка 16
... copper - faced hole d , which is insulated from the outer case by a hard - rubber bushing . A fine wire leads from here to o , and the circuit continues through the carbon plates and carbon granules to e , thence by the strip k to the ...
... copper - faced hole d , which is insulated from the outer case by a hard - rubber bushing . A fine wire leads from here to o , and the circuit continues through the carbon plates and carbon granules to e , thence by the strip k to the ...
Сторінка 18
... wire is such that the necessary number of turns are obtained in 5 layers or less . No. 32 to 36 B. & S. gage is generally considered advisable . Single silk - cover- ed copper wire is mostly used for both the pri- mary and secondary ...
... wire is such that the necessary number of turns are obtained in 5 layers or less . No. 32 to 36 B. & S. gage is generally considered advisable . Single silk - cover- ed copper wire is mostly used for both the pri- mary and secondary ...
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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