I have to agree with Bob. If you can afford it buy a Mig welder. I have miller that runs on 110V and work great for my needs. Here is a site that you can go to
http://www.weldingtipsandtricks.com/...ding-tips.html
He starts off with basic stuff which is what you need along with practice. Welding in patch panels in my opinion should be done using 1.4 inch rosettes. It will hold better. Learning to fabricate is a great asset. It certainly gave me confidence with what I do.