This circuit, which uses a quadruple comparator, was found in old American documentation. The response curve is shown next to the diagram and can be adjusted in the trimpots.
This circuit was found in the February 1994 issue of Electronics Now magazine. The circuit uses 6...
This circuit was found in a 1980s General Electric documentation. The circuit uses an operational of...
This circuit was found in documentation from the 1980s. The integrated circuit is from the time...