This 2002 documentation circuit is suitable for automotive use. The circuit is based on an integrated that is not common today and has a medium power stage with a BD135.
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...