Deluxe test patterns: Difference between revisions
→Other duplicators that used these test patterns
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* [[Osborn Video Productions]] (White screen, 1000 Hz tone)
* [[Technicolor Video Services]] (White screen, 1000 Hz tone) (tapes duplicated at plants acquired with Central Video)
* [[WRS Motion Picture & Video Laboratories]] (Black screen, 400 Hz tone)
==Honorable mentions==
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