This timer for long time intervals is from the 1990 Motorola Linear Databook. The setting applies to other operational ones and component values are given below the diagram.
This oscillator produces a rectangular signal in the range of 100 Hz to 1k Hz but with the change of...
This circuit was obtained in a 1999 English magazine. We can easily assemble it with a BD136 or...
I found this simple circuit from an English magazine from 1984. The circuit can be easily...