Handbook for the use of electricians in the operation and care of electrical machinery and apparatus of the U.S. seacoast defenses (1902)
United States. War Dept, Anderson, George Lucius, 1849-1934 · Washington, Govt. Print. Off. · leaf 54
implest form of a directcurrent, self-exciting dynamo, such as the fuse-firing dynamo. 4. The current thus sent to the field and theexternal circuit consists of positive pulsations orwaves, shown in fig. 40. 5. In order to render the positive waves less abrupt, that is, to make the dynamo current… … 39. Simple D. C. Dynamo. There isusually suflBicient liiagnetism in the field of thesoft-iron field magnet core to give rise to a smallcurrent in the armature coil when revolved. This current flowing, wholly or inpart, through the winding of the field magnet, increases its magnetism andtherefore…
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
