LM317 30v variable power supply circuit

This is my newest schematic that I put together and will start the build A.S.A.P.

This 30v variable power supply circuit is based on lm317 voltage regulator circuit . This LM317 30v variable power supply circuit can deliver high current (around 5 amps) and variable output voltage between 1.2 volts, up to 30 volts.

The led D3 mounted on pin 6 at lm301 lights in constant current mode . Current limit can be adjusted using R2 potentiometer and the output voltage can be adjusted from 1.2 volts to 30 volts using R8 potentiometer.
I've also included a digital volt meter, the only thing left to be added would be a current meter.

Input voltage for this variable power supply must be around 35 volts .

For this power supply circuit you need to use LM317K circuit (in to3 package ) which must be mounted on a heatsink .