PSU to Serve (Laboratory Power Supply)

That is the so-called "Laboratory" Power Supply Unit. Needed to power and measure all that devices to be used in DIY projects. For a long time I did use the laptop power supply with a voltage switch (after equiped it with one of that $1 3-dgit voltmeters) + StepDown. Very nice and unexpensive setup, should I say. But not so nice when you own the 3D Printer. Finally I was ready to spend another 2 days on new project and now happy to present results to you.

The PSU features regulated output vo