I don't know why my Periodic ON-OFF Timer don't work. They are two CD4541. | Electronics Forum (Circuits, Projects and Microcontrollers)
![(10PCS) NEW CD4541BE CD4541 4541BE Programmable Oscillation / A Timer Straight In DIP-14 CD4541BE Integrated Circuit (10PCS) NEW CD4541BE CD4541 4541BE Programmable Oscillation / A Timer Straight In DIP-14 CD4541BE Integrated Circuit](https://ae01.alicdn.com/kf/S84cfd657fc7a44d98e9c296a462e9e026.jpg_640x640Q90.jpg_.webp)
(10PCS) NEW CD4541BE CD4541 4541BE Programmable Oscillation / A Timer Straight In DIP-14 CD4541BE Integrated Circuit
![4541 Timer Relay Circuit 0.3 second to 10 hours | Timer, Electronic schematics, Electronic circuit projects 4541 Timer Relay Circuit 0.3 second to 10 hours | Timer, Electronic schematics, Electronic circuit projects](https://i.pinimg.com/564x/08/4d/b8/084db8f7c5fe09845efb972c27a3af6e.jpg)