Meadowcroft, Wm. H. (William Henry), b. 1853 · New York & London, Harper & brothers · leaf 67
is the platinum contact; E,the battery; and F, the induction-coil; P, Pare the wires to the primary, and S, S tothe secondary wires. We will now say a few words about thereceiver, and then describe the manner inwhich the telephone works. THE RECEIVER This is that part of the telephone whichis held… … Fig. 14 wound with wire so as to make it also an electromagnet when desired. In front of this magnet is placed loosely a diaphragm of thin sheet iron. This diaphragm is placed so as to be within the influence of the mag-50 THE TELEPHONE net, but just so that neither one can touchthe other. Fig. 14…
Electricity
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