Comb filter

摘要

A comb filter for a television receiver set for separating a video signal into a color signal and an intensity signal has a single support with fixed holders for keeping a solid delay line circuit and a related process circuit in place. The holders have grooves or slits for accepting said solid delay line circuit and said process circuit. The process circuit has some adjustable electronic components which are adjusted by using a laser beam or sandblast so that dip frequency of the filter is adjusted. The adjustment is carried out before the filter is mounted on a television set so that no adjustment is necessary after the filter is mounted on the television set.