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 was found in a 90s Radio Electronics. It is intended to amplify the sound channel of...
This circuit is based on an operational window comparator. We found it in a documentation from the...
This circuit is suggested by Motorola as the basis for the MC3324 A integrated circuit and has a...