Abstract
FOR some time I have been experimenting with the gramophone sound-box, and I came to the conclusion that with a diaphragm nipped firmly between two rubber rings there was a tendency for a vibration from the stylus bar to be cannoned back from the edge so held, and that one did not get a true ring. I made a sound-box as shown below (Figs. 1 and 2) in which the diaphragm is only held on its edge, and by cutting the front of the box in half it enabled me to mount the diaphragm free from distortion. With this box there is a very marked difference.
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DE LA RUE, E. Gramophone Experiments. Nature 90, 306 (1912). https://doi.org/10.1038/090306a0
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DOI: https://doi.org/10.1038/090306a0
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