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Old 06-24-2011, 07:52 PM
JBL_1 JBL_1 is offline
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Join Date: Dec 2006
Location: New Hampshire
Posts: 47
Quote:
Originally Posted by John Folsom View Post
There was no ACC signal being broadcast in 1954-56. None of the early color sets had and automatic color correcting. They all used a color oscillator phase locked to the burst. Some designs had a crystal in the loop, others (like Westinghouse and Sparton) did not. The Westy used R-Y/B-Y demodulation as opposed to I/Q demodulation.
Hey John, I wasn't talking about that GE VIR thing of the 70's. I was talking about compensating the chroma gain in the TV set for circumstances where the burst and chroma levels would be attenuated!

I and Q demodulation will give you the same color rendition as an R-Y /B-Y system if the gains and phases are set properly. You can't get the wide I channel but that is really hard to see.
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