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BackPush-button D MEC 5G single pole normally-open illuminated tactile switch SPST angled PTS645VL31-2 LFS tactile switch with 12 positions D Switch, three position, single pole double throw, separate symbols | | J9 | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8 Quad operational amplifier, DIP-14"/>