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 6
Сторінка 10
... mechanical pressure brought to bear upon it . Under high pressure the resistance of carbon is low , but under a low pressure its resistance is comparatively high . If , therefore , at the transmitting end of a line , carbon of one form ...
... mechanical pressure brought to bear upon it . Under high pressure the resistance of carbon is low , but under a low pressure its resistance is comparatively high . If , therefore , at the transmitting end of a line , carbon of one form ...
Сторінка 16
... mechanical vibrations ; the carbon blocks secure excellent contact with the carbon granules , and the latter give but little trouble by caking or " pack- ing " because they do not become much heated by the current , owing to there being ...
... mechanical vibrations ; the carbon blocks secure excellent contact with the carbon granules , and the latter give but little trouble by caking or " pack- ing " because they do not become much heated by the current , owing to there being ...
Сторінка 48
... mechanical weakness of smaller wire ren- dering it liable to be broken or stretched , no smaller sizes than No. 18 should ordinarily be employed . In making con- nections , the insulation of the wire must be thoroughly scraped off and ...
... mechanical weakness of smaller wire ren- dering it liable to be broken or stretched , no smaller sizes than No. 18 should ordinarily be employed . In making con- nections , the insulation of the wire must be thoroughly scraped off and ...
Сторінка
... complete combustion , which it treats from the chemical and mechanical standpoints , besides pointing out the eco- nomical and humanitarian aspects of the question . $ 2.50 . 5 GOOD , PRACTICAL BOOKS BOOTH . Steam Pipes : Their.
... complete combustion , which it treats from the chemical and mechanical standpoints , besides pointing out the eco- nomical and humanitarian aspects of the question . $ 2.50 . 5 GOOD , PRACTICAL BOOKS BOOTH . Steam Pipes : Their.
Сторінка
... Mechanical Appliances , Mechanical Move- ments and Novelties of Construction . This is a supplementary volume to the one upon mechanical movements . Unlike the first volume , which is more elementary in character , this volume contains ...
... Mechanical Appliances , Mechanical Move- ments and Novelties of Construction . This is a supplementary volume to the one upon mechanical movements . Unlike the first volume , which is more elementary in character , this volume contains ...
Інші видання - Показати все
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