Integrated Circuits Used 74LS138 74LS04 74LS08 Procedure Add IC 74LS138 into ICBase-1 (74LS138).Add IC 74LS04 into ICBase-2 (74LS04).Add IC 74LS08 into ICBase-3 (74LS08).Connect VCC Port to Pin-20 (VCC) of ICBase-1 (74LS138).
