Integrated Circuits Used 74LS04 74LS08 Procedure Connect Input-0 to Pin-1 (Input) of ICBase-1 (74LS04).Add IC 74LS04 into ICBase-1 (74LS04).Add IC 74LS08 into ICBase-2 (74LS08).Connect Pin-1 (Input) of ICBase-2 (74LS08) to Pin-2 (Output) of ICBase-1 (74LS04).