. Electrical world. FIG. 45.—DOUBLE \PHR.\GM TR.\NSMITTER, MODEL I. (FULL SIZE.) wire runs to a screw on the top of the block as at A. These screwsconnect to leading-in wires shown in Fig. 48. From an acoustic. FIG. 46.—DOUBLE DIAPHRAGM TRANSMITTER,MODEL 2. (full SIZE.) The most common form of electrodes is a fiat carbon plate, rang-ing from Yi in. to I in. in diameter, and from 1/16 in. to y% in. in ^^. Electrrides should be made of the hardest densest carbon;

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883