This circuit was found in an Electronics Now from the 90's. The integrated regulator circuit and the power transistor must be equipped with heat radiators.
This circuit show the performance of a GraetzBridge or Diode Bridge usedin full-wave rectifers....
We published this circuit in a magazine of the 90s, but it is still present by the components it...
A high level on the input of this circuit causes the trim voltage adjusted output voltage to drop to 1.2...