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 20
Сторінка 10
... induction coil ps , sound waves of a voice striking against the diaphragm d will cause varying pressures in the carbon and 10.
... induction coil ps , sound waves of a voice striking against the diaphragm d will cause varying pressures in the carbon and 10.
Сторінка 11
... induction coil are connected . The variations of the pulsating current will be in har- mony with those of the voice , and will induce in the secondary winding s of the induction coil an alternating current which will have a frequency ...
... induction coil are connected . The variations of the pulsating current will be in har- mony with those of the voice , and will induce in the secondary winding s of the induction coil an alternating current which will have a frequency ...
Сторінка 15
... is fastened to the cover r by the hard - rubber circular sleeve uu which overlaps it inch , and is damped by the cloth - covered end of the spring. FIG . 11. The Solid - Back Transmitter FIG . 12. - An Induction Coil FIG . 13. 15.
... is fastened to the cover r by the hard - rubber circular sleeve uu which overlaps it inch , and is damped by the cloth - covered end of the spring. FIG . 11. The Solid - Back Transmitter FIG . 12. - An Induction Coil FIG . 13. 15.
Сторінка 17
... Induction Coil . - An induction coil is used in Fig . 8 for several reasons . This instrument , by providing a short local circuit for the transmitter entirely independent of the line circuit makes the variations in the resistance of ...
... Induction Coil . - An induction coil is used in Fig . 8 for several reasons . This instrument , by providing a short local circuit for the transmitter entirely independent of the line circuit makes the variations in the resistance of ...
Сторінка 18
... Induction Coils , although varying in details , follows the same general design . There is an iron core composed of soft iron wires , preferably No. 26 or 28 , annealed to eliminate hard spots , and bound together in a round bundle ...
... Induction Coils , although varying in details , follows the same general design . There is an iron core composed of soft iron wires , preferably No. 26 or 28 , annealed to eliminate hard spots , and bound together in a round bundle ...
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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