Found in National Semiconductor documentation from the 1990s, this circuit corrects the curvature of the response curve of an RTD temperature sensor. The components used are from that time.
This proximity relay circuit was found in the July 1990 Radio Electronics magazine. The supply...
This circuit is from an old operational amplifiers manual. However, the setting applies to modern...
Using an operational amplifier, the figure shows how to convert the waveform to low frequency...