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Old 08-05-2011, 07:34 PM
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old_tv_nut old_tv_nut is offline
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Join Date: Jul 2004
Location: Rancho Sahuarita
Posts: 7,768
Yes, this sounds like 60 cycle hum getting in somewhere and rolling through due to the 59.94 Hz vertical of NTSC. Need to check grounds, but also power supply hum.
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