The standard manual of dynamos and practical application of dynamo-electric machinery (1915)
MacFadden, Carl K. [from old catalog], Ray, William D., [from old catalog] joint author · Chicago, Laird & Lee, inc. · leaf 73
l find that the primary coil is extremely 68 AI.TERNATING CURRENT. well insulated from its neighboring secondary coil, so asto make it quite unlikely for contact between them. The theory of the transformer is quite complex whenall of its internal actions are taken into considerationand many books… … $9 VOLT*. RATIO 20:1 ,IO00 Vbi-X4
Electrical engineering · Electric machinery
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