How does one use a transistor connected in either series or parallel with the load in a linear regulated power supply?
&quot;Design a power supply with a linear regulator and bypass transistor to regulate voltage to 12 volts and supply a maximum current of 5 amperes.&quot;

The solution is presented in the 78xx series datasheet on page 20.


I want to be able to design a linear regulated power supply but with a bjt near the load, ...

No, you want to use a BJT to boost the current handling ability of your voltage regulator.