2:37CD4013 ic 1 pin Touch ON and OFF circuit, Simple awesome diy electronics projectABTabi24.2K viewsView & Download
13:37A Look At Logic Gates CMOS CD4013 Duel D Type Flip Flop IC ChipJason Does Things1.8K viewsView & Download
5:43Basic Electronic Code Lock System | 555 Timer Project #18Elonics - Electronics Projects on Breadboard35.8K viewsView & Download
2:37Proteus - IC 4013 - D Flip Flop - Combo Lock Project - 1 of 3J3 JayThree2.4K viewsView & Download