the diaphragm contained in A or B free to respond to currents from the distant station. When renders signals unintelligible. i towards, or its recession from, a highly charged electropho this station is wanted, however, the lever, S, is turned to the \ rus, C or D. The vibrations of the… … " For lines of moderate lengths, say from one to thirty ly very weak. Another form of electro-static telephone is shown in Fig. miles, another arrangement, shown in Fig. 4, may be used While engaged in experimenting with his telephone Mr. 9. In this arrangement Deluo piles of some 20,000 disks…
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