Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 80
FIG. 42.-THE TURNBULL TRANSMITTER. the diaphragm. The rods, b and C, form the terminals of the trans-mitter, and the current passes from one of tkem through the carbonpendants in multiple to the other. The variations in resistanceoccur principally in the contacts between the rod, C, and the… … y?- FIG. 43.-TnE CLAMOND TRANSMITTER. Fig. 43 shows still another form of the multiple-electrode trans-mitter, using carbon balls instead of pencils or pendants. Arepresents the vibratory diaphragm of carbdn; B a plate of carbonhaving a number of cylindrical cavities, ; t, upon one side.…
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