This Intersil circuit was found in a 1980s documentation. Operational are of the time, but current equivalents can be experienced. The graph with the circuit performance is given next to the diagram.
This circuit is from a 1976 documentation. It makes use of isolated gate MOSFET which is already very...
This interesting circuit was obtained from a 90's EDN. What it does is generate negative voltages...
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can...