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.
Suggested by an American publication of 1964 this circuit is intended for the capture of signals...
We found this circuit in a 1980s General Electric documentation. It appears from other sources in this...
Hughes suggests this circuit in a 1968 documentation. The circuit uses old transistors that can be...