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