Using operational amplifiers of the time, we found this circuit in documentation from the 90s. The configuration can be adapted to use modern operational amplifiers.
Power VMOS or MOS transistors are not yet very easily found in our market (1990), but if the...
The voltage regulator integrated circuits of the 78XX series can be found with voltages from 5 v...
Found in American documentation from the 1990s, this circuit uses coils with multiple outlets to...