The circuit shown has a maximum output current of 1.5 A. We find this traditional configuration in the Linear Applications Handbook by National Semiconductor. R1 must be wire.
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...