Class B Push-Pull Recording for Original Negatives
Progression from standard variable-area types of recording to class A push-pull and finally from class A to class B push-pull was primarily motivated by an appreciation of the inherent advantages of the push-pull types of recordings, and an ability to perfect processing and recording controls necessary to realize the finer qualities of the class B push-pull recording. The adoption of class B push-pull variable-area for original recording has eliminated distortion introduced by noise-reduction systems, and has reduced background noise by at least 6 db.
- Print ISSN
- 0097-5834
- Published
- 1939-12
- Content type
- Original Research
- DOI
- 10.5594/J01261
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