Integrated Circuits Used 74LS08 Procedure Add IC 74LS08 into ICBase-2 (74LS08).Connect Pin-20 (VCC) of ICBase-2 (74LS08) to VCC Port.Connect Output-9 to Pin-3 (Output) of ICBase-2 (74LS08).Connect Pin-7 (Ground) of ICBase-2 (74LS08) to GND Port.