良く使うTr、FET、ICのデータシート CS8412:1998 CS8414:1998 SAA7220:1985 SM5843A:1997 DF1704:1998 TDA1541:1985 Here is no A, R1, S1 versions TDA1541A:1991 Here is no TDA1541A/S2 version The official Philips digital.pdf:1997 Include the versi…