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0460000465

Making recording on Emile Berliner's Gramophone (1887). Speaking into tube produced trace on glass disc (A) coated with lamp-black. D, electric motor, E its battery. Trace fixed by varnishing, then copied in metal photographically. From 'Cassell's Family Magazine', London, 1888 Engraving

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0460000465.jpg
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Irish Photo Archive
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6000x7239 / 4.4MB
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Making recording on Emile Berliner's Gramophone (1887). Speaking into tube produced trace on glass disc (A) coated with lamp-black.  D, electric motor, E its battery. Trace fixed by varnishing, then copied in metal photographically. From 'Cassell's Family Magazine', London, 1888 Engraving