Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 92
transmitter. The back electrode, C, is large, being14 in diameter and f thick. The chamber in which this blockis mounted allows about \ space all around the electrode, whichspace, as well as that between the diaphragm and the back electrode,contains granular carbon. The diaphragm, D, is of carbon,… … FiG. 54.- -WESTERN TELEPHONE CONSTRUCTION COMPANYSTRANSMITTER. bon, and only the lower half of the diaphragm, therefore, is activelyengaged as an electrode. In Fig. 55 is shown a transmitter patented by Mr. T. F. Aheam,changes in area of contact without changes of pressure. £ is a carbon electrode…
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