On this model of PS there are two jacks, one is internal wiring and the other output. As I was only wanting 12vdc I tapped these as my output. The bottom right connection on the output jack goes back to the board and is tagged on/off. This was grounded to the green coming from the internal horz. connector on the left,looking from the rear. As to the internal wiring I picked up the 6v and installed a 6psb lamp to steady the output. The only internal connection that has be made is the black that goes between the two internal connectors, one horz. and one vert. It's working good for me at this time and also have put a fan on. Like I said at top, I'm no whiz at this, but hope info may help. Later, Kirk.