Found in American documentation from the 90s, this circuit uses components that are still common today. The 15 V power supply must be symmetrical.
This shield can be controlled by positive or negative voltages of the sensor acting as a...
This circuit is from a 1980s Signetics documentation. Equivalent operational amplifiers may be...
This circuit was found in an Electronics World of 1969. Transistors are general-purpose types. It...