Found in a 1967 Electronics World, this circuit can use any modern equivalent FET. Observe the amplitude of the input and output signals.
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...