This timer, like the previous circuits, uses a currently uncommon integrated circuit. The time is given by capacitor C1 and R2 which has the range of values indicated in the diagram.
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
This circuit is from a 1995 documentation. Several CMOS integrated circuits are used to produce...
This regulator circuit was found in the June 1984 issue of Radio Electronics magazine. The LM11 is a...