. Electrical world. screw and carried to one side of the case and then attached under-neath one of the springs, which check diaphragm vibrations. Thecapsule the carbnn i? nirious. It consists in the first Telephone Transmitters.—V. By Arthur V. Abbott, C. RICSSON Transmitter.—The Ericsson Telephone Co. presents a/V, transmitter which is somewhat unique in design and differs de-cidedly from most of those of American manufacture. In a combined transmitter and receiver is shown, and also a modelof the transmitter by itself. In Fig. 36 the transmitter of the com-bined mode


. Electrical world. screw and carried to one side of the case and then attached under-neath one of the springs, which check diaphragm vibrations. Thecapsule the carbnn i? nirious. It consists in the first Telephone Transmitters.—V. By Arthur V. Abbott, C. RICSSON Transmitter.—The Ericsson Telephone Co. presents a/V, transmitter which is somewhat unique in design and differs de-cidedly from most of those of American manufacture. In a combined transmitter and receiver is shown, and also a modelof the transmitter by itself. In Fig. 36 the transmitter of the com-bined model is shown dissected. In Fig. 37 the individual trans-mitter is opened, while in Fig. 38 it is completely dissected. Inmany respects the Ericsson transmitter resembles that manufacturedby the Stromberg-Carlson Company. The transmitter consists of a case of two parts A in. thick and2% in. in diameter, made of pressed brass. The front half carriesthe diaphragm, as is shown in Fig. 37. This is of iron 2j/^ in. in. FIG. 36.—ERICSSON INSTRUMENT DISSECTED. place of a pressed brass cup, as shown in Fig. 38. This is linedwith a celluloid washer, upon which a spider-shaped copper springis placed. On top of the copper spring a carbon electrode is secured


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883