This circuit was taken from the 1976 Siemens Integrated Circuits Manual. The TCA106 is an operational amplifier similar to the 741.
This counterphase circuit is from a 1973 publication, and can work with mains voltages or 12 V....
This circuit can be used to directly control direct current loads or higher alternating current loads...
The acquisition of data, from a transducer, so that these data can be converted to digital form...