The operational amplifier used is not common today, but the circuit can be implemented with modern operational ones. The gain is 1000 and the source must be symmetrical.
We found this circuit in a 1988 documentation. It is a protective system that automatically shuts...
The operating voltage of this circuit is 18 V, and the source current is 3.5 A. The circuit is...
Found in an American circuit manual from the 1970s, this circuit can use any general-purpose transistor....