The Gramophone Record

acetate acid acoustical alcohol aluminium amount amplitude anode barytes bath Berliner Gramophone binder blanc fixe carbon black cathode cause cellulose cent centre pin chromium constant cooling copper current density cutter cutting stylus cycles cylinder decibels decrease deposit diameter diaphragm disc effect electrical employed energy filler frequency give gramophone record grinding groove hard heat inch increase iodine value latter loudness manufacture material matrices maximum means mechanical melting point metal method microphone mill mixing moulding needle nickel obtained occur operation output particles patent Phonoautograph Photomicrograph pigment pitch plastic plating pressure produce recording machine recording stylus reproducing resin response curve reverberation rotation rubber saponification value shellac soft solid stock solution sound waves specific gravity speed stamper steam steel studio stylus surface noise temperature thick turntable uniform usually varies velocity vibration wax master wear Western Electric