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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Результати 1-5 із 30
Сторінка 4
... 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 hold a weight of 16 ounces . The ...
... 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 hold a weight of 16 ounces . The ...
Сторінка 6
... ohms ( see Appendix ) divided equally between the two coils . Cotton - covered copper wires are soldered to and connect the magnet windings with the inner parts of the bind- ing posts c and c . The diaphragm is of ferro- type metal ( a ...
... ohms ( see Appendix ) divided equally between the two coils . Cotton - covered copper wires are soldered to and connect the magnet windings with the inner parts of the bind- ing posts c and c . The diaphragm is of ferro- type metal ( a ...
Сторінка 16
... ohms to 75 ohms . The solid - back transmitter leaves little to be desired ; it is sensitive to sound waves , but not to mechanical vibrations ; the carbon blocks secure excellent contact with the carbon granules , and the latter give ...
... ohms to 75 ohms . The solid - back transmitter leaves little to be desired ; it is sensitive to sound waves , but not to mechanical vibrations ; the carbon blocks secure excellent contact with the carbon granules , and the latter give ...
Сторінка 18
... ohms in the primary and 175 ohms in the secondary . The terminals are brought out in heavy wire and are connected to binding screws 18.
... ohms in the primary and 175 ohms in the secondary . The terminals are brought out in heavy wire and are connected to binding screws 18.
Сторінка 22
... ohm , and the electromotive force is about 1.5 volts . A modified form of the Leclanché cell is shown in Fig . 14 . The depolarizer here consists of two blocks , e and s , of manga- nese dioxide and car- bon clamped around the negative ...
... ohm , and the electromotive force is about 1.5 volts . A modified form of the Leclanché cell is shown in Fig . 14 . The depolarizer here consists of two blocks , e and s , of manga- nese dioxide and car- bon clamped around the negative ...
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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