This two-transistor circuit was found in American documentation from the 1990s. The circuit can use modern general-purpose transistors.
This circuit has a maximum output current of 5 A, and the 2N3055 must have an excellent heat sink....
We found this circuit in the May 1972 issue of Radio Electronics magazine. Its purpose is to teach...
We found this circuit in old documentation. Modern equivalent operational amplifiers can be used....