I've heard of people talking about taking old frames apart to do this. I have managed to save up a few bikes, but didn't know how to start when taking them apart. I'm guessing just heating them up and pulling them out with a wrench? I want to start on this first thing tomorrow morning when I get out of work, spending a day taking them apart then like you said do a run of brazing them all which would be an excellent way to learn.

But, is that the right way of taking them apart? I can't think of any other way that would be practical.

Thank You.