Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 421
Fig. 196. Low Voltage Coils. per layer, with fullerboard insulation, in addition to thecotton covering, between turns. Exceptions to this con-struction are made only when the size of the conductoris such as to render the use of copper strip impracticable, ELEMENTARY ELECTRICITY … Fig. 197. Method of Spacing High Voltage and Low Voltage Coils, TRANSFORMERS 423
Electricity
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