This circuit was found in a National Semiconductor manual from the 1980s. The operational amplifier is from that time and the waveforms are shown in the diagram.
This Motorola circuit uses only one transistor. The circuit is from 1965 documentation. The...
This circuit was found in an English publication from 1989. The integrated circuits are of the...
This circuit can be used in bridge of sensitive measures. We found it in a documentation from the...