Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 408
ried to a thin metallic disk C (Fig. 373), exactly like a telephone diaphragm, which takes up very nearly the vibration form of the wave which strikes it. This vibration form is 2^Pinianently impressed on the wax-coated cylinder ]\I by means of a stylus D which is attached to the back of the disk.… … Tig. 374. Mechanism for form-ing gramophone records VegefxAle- TissueDiaphragin
Physics
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