This circuit was found in a 90s EDN. Its purpose is to increase the efficiency of operational amplifiers. Power MOSFETs and inverted zeners support equivalents.
The sensors in this circuit are NTCs and PTCs that work in a differential way by directly...
We found this circuit in a 90's Radio Electronics. The circuit can still be easily assembled as all...
Found in a 90s Electronic Design, this circuit rectifies sinusoidal signals providing output as...