We have already presented this circuit, obtained from manuals from other manufacturers of the used integrated circuit. This is specifically from Motorola's 1990 Linear Databook.
The circuit shown is from an old European publication. In it we have the way to activate a relay...
We found this circuit in a European publication from the 1990s. Transistors are still common types...
This circuit was found in an American documentation and can be added to common amplifiers of any...