Handbook for the use of electricians in the operation and care of electrical machinery and apparatus of the U. S. seacoast defenses .. (1904)
United States. War Dept · Washington, Govt. print. off. · leaf 183
d current goes to line. 3. AVTien the receiver is on the hook lever for calling, the circuit between terminals is— 1. Bells, 3. 1. H,L, .4, bells, 3. 4. When receiver is on and the crank is turned to call, the circuit is— 1. A, armature, 3.\ 1. H, L, A, armature, bells, 3. 1. Bells, 3. / 5. When… … P=-^% 170. Complete Details of Bridge Telepiione. (Porous cup and Ilaydt-ii cells shown ; uso one kind only.) 130 HANDBOOK FOR ELECTRICIANS, 6. Five bridge or four series telephones are the limit on one circiiit. Whenmore are required (as will rarely happen) a central exchange or a party line…
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-62-15.webp)
