General Electric suggests this circuit in a 1980s documentation. The operational of the time is FET-type input. Modern equivalents may be used.
We found this circuit in a 1977 documentation. The integrated circuit used is 4001. The signals...
In the figure we have a 9V source using a 5V 7805 regulator. The circuit is from an American...
We found this circuit in the 1982 SGS Linear Integrated Circuits manual. The integrated circuit used...