Lynde, Carleton John, b. 1872 · New York : Macmillan · leaf 243
re alternately north and southpoles. The armature B B, shown on the right, is a drumarmature. It consists of many coils wound lengthwise on asoft iron drum. The coils are attached to the strips of thecommutator in series. A commercial alternating-current dynamo is shown in Fig. 165.The field magnet… … ^^^^^SL^^l^S!^^^/^
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