. Electrical world. FIG. 17.—SECTION OF KELLOGG TR.\NSMITTER, FULL SIZE. the cup. A thin aluminum ring is then placed over the mica washerand riveted. This hermetically seals the electrodes and enclosedcarbon. The shank of the brass disc, g, is then inserted in )!hebridge and clamped in its proper place by a set-screw. By thisdesign the rear electrode is clamped firmly against the bridge, but. FIG. 19.—KELLOGG TR.\XSMITTER DISSECTED. carbon is formed in the diaphragm by pressing a cup-shaped de- the entire cup containing the front electrode and carbon vibrates pression in the center. with ever
. Electrical world. FIG. 17.—SECTION OF KELLOGG TR.\NSMITTER, FULL SIZE. the cup. A thin aluminum ring is then placed over the mica washerand riveted. This hermetically seals the electrodes and enclosedcarbon. The shank of the brass disc, g, is then inserted in )!hebridge and clamped in its proper place by a set-screw. By thisdesign the rear electrode is clamped firmly against the bridge, but. FIG. 19.—KELLOGG TR.\XSMITTER DISSECTED. carbon is formed in the diaphragm by pressing a cup-shaped de- the entire cup containing the front electrode and carbon vibrates pression in the center. with every motion of the diaphragm. So the first essential difference This construction is shown clearly in Figs. 19 and 20. The tront between the White transmitter and that of the Kellogg Company is electrode, d^. Fig. 17, is a thin, flat piece of carbon highly polished that in the White instrument the carbon rcccptriclf i-; ti\cd and in
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
