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BackSwitch https://www.ckswitches.com/media/1972/ksc6.pdf CK components KMR2 tactile switch with LED, generic K switch dp3t ON-ON-ON D Switch, single pole double throw Precision Timers, 555 compatible, PDIP-8 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92