THE BEST SIDE OF HOW TO MAKE A DC VOLTAGE REGULATOR 0-50V AT HOME

Of course, You should utilize 20K pot. But, you should insert 20K resistor in parallel with this 20K pot. See in the picture under, the full resistance is 10K precisely the same from the circuit. ok Sir, thanks a great deal. I more info have verified it by lowering the enter AC provide within the transformer, and the warmth was significantly less.