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Amplifying the Optophone

Nature volume 107, page 8 (1921)Cite this article

Abstract

IT may be of interest to record some experiments that I have recently been making on the application of a thermionic amplifier to increase the volume of the sounds produced by Dr. Fournier d'Albe's very wonderful optophone so as to render these sounds audible to everyone in a room without the necessity of each listener being furnished with a separate telephone receiver.

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  1. 66 Victoria Street, London, S.W.1

    A. A. CAMPBELL SWINTON

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  1. A. A. CAMPBELL SWINTON
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SWINTON, A. Amplifying the Optophone. Nature 107, 8 (1921). https://doi.org/10.1038/107008a0

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