Henry and Hora's modern electricity; a practical working encyclopedia (1915)
Henry, James. [from old catalog], Hora, Karel Jan, 1881- [from old catalog] joint author · Chicago, Laird & Lee, inc. · leaf 175
ne by having a rectifying com-mutator near the collect-ing rings, which allows asmall direct current topass through a few turns ofwire on the field magnetsThis composite excitationmay be compared to thecompound winding ofdirect current machines.Field magnets of alternators i35« Some kinds of field… … ELECTRICAL ENGINEERING 173
Electrical engineering
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