Practical Tape Duplication
Design considerations affecting the manufacture of a tape-duplicating apparatus are presented. These include acceptable signal-to-noise ratio, frequency response, distortion, and timing stability. Alternative desirable operating methods are considered. The high-speed production of a relatively small number of copies from each one of a large number of master tapes calls for very different apparatus from that required for the production of large numbers of copies from a relatively small number of master tapes. A reasonable compromise with both operating methods is proposed. The problem of equalization is dealt with.
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