This circuit that appears in other points of this section and on this website serves to activate a lamp in the event of a power failure. This version is from 1967 documentation by General Electric.
We found this circuit in a 1986 documentation. It causes 40 LEDs to flash sequentially. The big...
Found in a National Semiconductor manual from the 90's, this circuit uses components of the time,...
Simple timers can be designed using inverters or any other gate that can be connected as inverter. Figure...