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 12
Сторінка 2
... varying current of electricity in the coil r of telephone B , and this in turn will cause a varying attraction of the diaphragm i , making it vibrate in unison with the diaphragm e of tele- phone A. If , therefore , a person talks against ...
... varying current of electricity in the coil r of telephone B , and this in turn will cause a varying attraction of the diaphragm i , making it vibrate in unison with the diaphragm e of tele- phone A. If , therefore , a person talks against ...
Сторінка 13
... by y , a heavy metal strip , which in turn is fastened to 7 by the spring k . The pressure between the platinum contact , the carbon button , and the iron diaphragm is adjusted by varying the position of the strip y by means 13.
... by y , a heavy metal strip , which in turn is fastened to 7 by the spring k . The pressure between the platinum contact , the carbon button , and the iron diaphragm is adjusted by varying the position of the strip y by means 13.
Сторінка 15
... turn , is screwed to the cover rr . On the inner sides of the chamber are two carbon blocks a and v , the latter together with a mica washer ii forming one side of the chamber , and the former a portion of the other d B k s r u S m bi e ...
... turn , is screwed to the cover rr . On the inner sides of the chamber are two carbon blocks a and v , the latter together with a mica washer ii forming one side of the chamber , and the former a portion of the other d B k s r u S m bi e ...
Сторінка 17
... turns in the primary winding p to the number of turns in the secondary winding s . Thus , with 300 turns in the primary and 2,400 turns in the secondary , the ratio is 1 to 8. A pressure of E volts ( see Appendix ) across the primary ...
... turns in the primary winding p to the number of turns in the secondary winding s . Thus , with 300 turns in the primary and 2,400 turns in the secondary , the ratio is 1 to 8. A pressure of E volts ( see Appendix ) across the primary ...
Сторінка 18
... turns and is wound in two layers . The size of the primary wire de- pends upon the kind of batteries employed and varies considerably . No. 22 or 24 B. & S. gage would be considered an average size . The num- ber of turns in the ...
... turns and is wound in two layers . The size of the primary wire de- pends upon the kind of batteries employed and varies considerably . No. 22 or 24 B. & S. gage would be considered an average size . The num- ber of turns in the ...
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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