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by ldite
3381 days ago
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It also reduced the effects of mains interference. If you had a 60Hz vertical scan, but there was interference from 50Hz mains (as there often was) then this would cause rapid rolling vertical distortion. At 50Hz, even if the vertical sync wasn't actually locked to the mains frequency, any mains distortion would roll much, much more slowly, and be less offputting. |
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