What are the sizes of old retro console power ports?

[Ehab]

I heard about the RetroDC, and I wanted to make my own ghetto version of it, and hope it works. To do that, I need to know the sizes of the male power connectors the retro consoles use.
this is what this thread is for! if you know what the sizes are of any of the old consoles that use the circular power ports (I'm talking about the NES, Genesis, and all of those that have similar shapes), please share

 

[gamesquest1]

Nothing a quick Google couldn't find out
http://bordersdown.net/threads/101952-EUR-NES-SNES-Power-Supply-Plug-Size
http://bordersdown.net/threads/9340...Drive-Mega-CD-32X-Master-System-Game-Gear-etc
Those threads seems to cover all the nes/snes/mega drive ports