The brand new voltage regulator crapped out on my fully restored '56.  Put the old regulator back on and it has been working fine, but I don't trust it long term.

So my question is simple.  What do you recommend I buy and from who.  

Question #2:  Are all 12 volt regulators the same or do I need a '56 compatible regulator.

Thanks guys, I know there are lots of experts out there.