{HEAD ~ The reference level} of the narrow wavelength encoder is set proportionately to the level of the wide wavelength signal by means of a voltage divider, so that {TAIL ~ the second color} of the two color system may be more accurately separated 
{ HEAD ~ The reference level } of the narrow wavelength encoder is set proportionately to the level of the wide wavelength signal by means of a voltage divider , so that { TAIL ~ the second color } of the two color system may be more accurately separated
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