Magnetic Recording, 1900-1949 |
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American apparatus application Audio Engineering bias Bibliography broadcasting Brush characteristics circuit coated components Continued cording curves described developed device diagrams discussion distortion drive effects Electrical Electrical Engineering Electronics employed Engineering equipment erasing field Filed film frequency response German given gives granted head high frequency Illustrated improved included Institute instructions July June Laboratories machine magnetic recording magnetic sound recording magnetic tape recorder Magnetic wire recorder Magnetophone manufacture March means measurements mechanism medium method Motion Picture Engineers noise obtained Office of Publication operation performance Photographs Picture Engineers Journal playback portable possible Poulsen present principle problems producing Radio range receiver recording and reproducing recording media recording system Report requirements Research Review Science Scientific Sept signal Society of Motion speed steel wire Technical techniques telegraphone telephone tion U.S. Patent unit