Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 96
nces of the telephone induc-tion coil, but the matter is of such an extremely complex nature,and all of the quantities are subject to such complex and almostindeterminate variations, that the results so far produced have beenin general uncertain. Fig. 56 shows a sectional view, and Fig. 57 a view… … FIG. 56.-SECTIONAL VIEW OF INDUCTION COIL.
Telephone
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