Quote:
Originally Posted by old_tv_nut
Regarding the use of less than 100% DC coupling in the chroma channels:
As you stated, this does shift the overall color balance towards the opposite of whatever the dominant (average) color is. In TV sets, this reduces the effects of DC drift in the color difference amplifiers.
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Can you explain what DC drift in the color difference amplifier is? A drift in the DC voltage provided to the amplifier's plate due to the unregulated B+ power supply? Would 100% DC restoration for the output of the color difference amplifier really make the color consistency worse, or would it just be a small improvement since there is already 70% DC restoration?