[DECEMBER 14, 1889. 374 wire, as an accident of this the materials of which it is … circular aperture of the dia- Fig. 1—SIMPLE TELEPHONE—PERSPECTIVE VIEW. One leg of the magnet is phragm eell, it will form a broken off, as shown. To G, to touch the iron of the diaphragm. Between the able difference in the working of the instrument. the center of the cover, 7, of the box, a, is…
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