Integrated Circuits Used 74LS86 74LS08 Procedure Add IC 74LS86 into ICBase-2 (74LS86).Add IC 74LS08 into ICBase-3 (74LS08).Connect Input-8 to Pin-1 (Input) of ICBase-2 (74LS86).Connect Pin-1 (Input) of ICBase-2 (74LS86) to Pin-3 (Output) of ICBase-2 (74LS86).