This amplifier in common mode was obtained in an Electronic Design from the 90's. The circuit is valid for any operational, remembering that the power supply must be symmetrical.
We found this circuit in an English publication from 1969. The circuit uses transistors from the...
This circuit was obtained from an 80's amateur radio documentation. The integrated circuit is a...
This circuit, which appears in this section elsewhere, is from an American 1980s documentation....