High-Speed Contact Duplication of Video Magnetic Tapes

Author(s): Charles E. Anderson
Publisher: Society of Motion Picture and Television Engineers
Publication Date: 1 October 1971
Conference Location: Montreal
Conference Date: 7 October 1971
Page(s): 51 - 70
ISBN (Paper): 978-1-61482-904-1
DOI: 10.5594/M00182



The first part of this paper reviews briefly the principles of contact duplication which were reported in several previous papers.1,2,3 These principles are applicable to all types of recordings regardless of tape format, quadruplex or helical. The second part discusses those problems which are particularly important when duplicating helical recordings.