A HISTORY OF EDISON'S WEST ORANGE LABORATORY 1887-1931

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. The steady progress reproducers and recording techniques the 1890s made the work Jonas Aylsworth central the Edison phonograph business, for any improvement in these areas had matched better wax compounds— or the benefits might wasted. The reproducer earlier "perfected" phonographs had been specifically designed record the human voice for dictation and was therefore unsuited capture the tonal range of music. was reached when the "automatic" reproducer was introduced the new models of 1893. The goal these years research was new reproducer that could recreate music. Aylsworth's research covered an immense range organic and non organic substances, especially waxes and resins, the search for the perfect compound for the cylinder.^ A harder stylus required harder wax compound stand up the sharper point and the heavier tracking pressure of improved reproducers. The ideal substance did not only have very hard, but also had easy mould into cylinders.VII-IO music. The hardness the wax was also a critical element capturing wider range frequencies, especially the low, bass notes which cut deeper groove the record. The use hard, jeweled stylus instead a sliver steel was major innovation phonograph technology; was less liable catastrophic damage and allowed better tracking and improved response the higher frequencies. had glass diaphragm and tiny sapphire ball served as the stylus