I have a rectifier (3 phase I believe, with 6 diodes) that has three terminals on it:

I also have three wires coming from my alternator, now this is probably going to be a stupid question, but if I put one wire per terminal for input, where do I get power out of?
Also for certain applications another diode trio could be used, but I'm not sure if I need it, either way with a multimeter I measure voltage in, but no voltage out

Any advice at all would be a great help

 

What alternator? What are the part numbers of the pictured devices? If this is a vehicle. What is tha make and model?

Edit, this is a kit that should fix any DELCO 17SI ALTERNATOR

http://cgi.ebay.com/ebaymotors/ALTERNATOR-REPAIR-KIT-GM-DELCO-17SI_W0QQitemZ8055245621QQcmdZViewItem

It's craploads cheaper than rock auto who should beat their IT geek with an axel.

I <3 that ebayer, they have diagrams and everything.

 

I actually already have the parts, I'm trying to use the rectifier by itself. And managed to solve the problem ! The original alternator used to have a battery terminal that would touch the powered side of the rectifier, which of course didn't come with it. You wouldn't believe how long it took me to figure that out, oh well Now my issue is getting the right amount of power to my battery, some says they managed it without a voltage regulator, but I don't know how as I generate almost 40V!

 

I generate almost 40V!

That's one of the reasons why you should never disconnect a car battery with the engine running!