This standard applies to the quality grading of piezoelectric ceramic frequency discriminators used in television audio intermediate frequency frequency identification circuits. This standard only gives key technical indicators and is not a complete standard. It must be used together with SJ2965-88, SJ 2966-88 and related detailed specifications.
SJ/T 9571.3-1995 history
1970SJ/T 9571.3-1995 Quality grading standard for piezoelectric ceramic discriminators for SIF discriminator circuit of TV receivers