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Updated: May 13, 2025
In other words, an arc light can be made to act as a telephone receiver." I could hardly believe the thing possible, but Garrick went on explaining. "You might call it the arcophone, I suppose. The scientific fact of the matter is that the arc is sensitive to very small variations of the current. These variations may run over a wide range of frequency.
"In the case of the speaking-arc or 'arcophone, as it might be called," he continued, "the fact that the electric arc is sensitive to such small variations in the current over a wide range of frequency has suggested that a direct-current arc might be used as a telephone receiver.
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