. Electrical world. th originality and merit along lines other than thoseembodied in the solid backs, but for some unexplained reason few In Fig. 46 a different design is shown. The two diaphragms,3-3, supported by the rings 2-2, form the sides of a resonant cham-ber, into which the sound funnel, 11, opens. The carbon electrodes,5-5. are bolted to the center of the diaphragms, and surrounded bya flexible fibrous wrapping, 7, while the cavity thus formed is filledwith granular carbon. The simplicity and cheapness of such designsis certainly remarkable. The Fahiiestocl; Transmitter.—The transmit
. Electrical world. th originality and merit along lines other than thoseembodied in the solid backs, but for some unexplained reason few In Fig. 46 a different design is shown. The two diaphragms,3-3, supported by the rings 2-2, form the sides of a resonant cham-ber, into which the sound funnel, 11, opens. The carbon electrodes,5-5. are bolted to the center of the diaphragms, and surrounded bya flexible fibrous wrapping, 7, while the cavity thus formed is filledwith granular carbon. The simplicity and cheapness of such designsis certainly remarkable. The Fahiiestocl; Transmitter.—The transmitter manufactured byFahnestock Transmitter Company, represents the latest and in manyrespects the highest development in transmitter building. The as-sembled instrument is shown in Fig. 47. There is a base 4 in. long2 in. wide, to which a swinging arm 6 j in. long is pivoted, that pro-vides reasonable range of motion to the mouthpiece. The base car-ries the induction coil in local batterv instruments. On the end of.
Size: 1628px × 1534px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
