How to build a $20 47A power supply

[jhautz]

Originally Posted by _paralyzed_

I've got a stupid question. I'm finally getting around to building one of the 47a power supplies like on the first post on the first page.

Do I need to wait until I plug in the power supply to 120vac before I connect the 3 wires, or can I just hard wire the 3 wires to the pins and just plug and unplug the power supply from the wall?

Just hard wire them..