Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 422
Fig. 197. Method of Spacing High Voltage and Low Voltage Coils, TRANSFORMERS 423 … Fig. 198. Partly Assembled 25 Cycle, 500 K. W., 20,000 to 375 VoltTransformer. 424 ELEMENTARY ELECTRICITY
Electricity
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