The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 161
lation(usually cotton) wound to the proper shape on a form, wrappedwith tape, and finally covered or impregnated with an insulat-ing compound. The core slots are often lined with tough, heavypaper or fiber. After being placed on the core, the coils are heldby wedges of fiber or wood driven into the… … Fig. 98.—Laminations partly assembled, making up the armature coreof a skeleton frame alternator. desired. Occasionally a separator is included to provide airducts through the core for ventilation. The three dark ringsaround the core in Fig. 97 show where the ducts are. Theteeth are carefully lined…
Telegraph, Wireless · Radio
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
