3.3V PSU Update

I've configured the PSU I got a while back.  This is needed for the  5.8GHz video transmitter from Range Video.

It was pretty straightforward to assemble.  I put a JST connector on the input and output, desoldered the 12V pad, and soldered the 3.3V pad.  I wrapped the whole thing in a 3/4'' shrinktube, but a 1/2'' would have been better.

I'm not sure what the signal line is for.

Step Down PSU, 3.3v, 5v, 9v, 12v

Ordered this from hobbyic.com and stashing the docs, such as they are, here.  They note: "Do not power 1W video transmitter"