• Tape Certification Today and in The Future

      O'Sullivan, Tony; Book, Harold; BOW Industries, Inc. (International Foundation for Telemetering, 1988-10)
      The advent of high density digital recording has required the development of sophisticated tape certification equipment which allows the user to test tape for dropouts at his actual system bit packing density and to clean and program wind tapes with the same equipment. By using two sets of reproduce heads with dual threshold and duration controls tapes can be graded as to their suitability for use with HDDR systems or far less exacting analog applications.