This very low power circuit is based on the ICL7860. We found it in an Electronics Now from April 1995. The output current is very low.
This circuit is from an English magazine of 1977. The circuit is still current, just using BC547...
This circuit was obtained in an old Elektor. It is a reference, since the integrated products of the...
This circuit was found in a European technical documentation from 1991. It is a circuit that must...