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
Fig. 414. — A receiving transformer. … tate about an axis so thatby turning the knob on topany desired amount of themovable plates can be in-cluded between the fixedplates. Finally, the receiving telephones used in wireless tele-graphy must be doubles-head telephones (Fig. 416) with a Mo table ][.. 11. — Variable receiving condenser.…
Electricity · Magnetism
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