An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 627
and the negative alternationdecreases it. The receiving transformerusually consists of two coilsof fine wire so arranged thatthe number of turns usedcan be varied, and also therelative positions of the two coils. One form of tuning coilsis shown in figure 414. There is also in nearly every… … Fig. 414. — A receiving transformer.
Electricity · Magnetism
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