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 86
TPDT 81 and 82. Diagrammatic Sketch of Engineer Switchboard Battery Panel. (h) The Weston ammeter A is similarly constructed, but has fewer turns ofcoarser wire in the coil, which carries a very small but a fixed fraction of the maincurrent through the shunt ^ ^ of German-silver strips in the main…
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
