Oxycon advice wanted

[cropwell]

I use these people for my mig welding gas

So do I, and I have considered them. When you add a regulator and the fill charge, you are not far off the concentrator setup cost, and to me it is a bit of a meh decision (not a lot in it). I can only find one reference on t'Interweb about using a concentrator for brazing, and that is oxy-propane used by bike frame builders.

Really, I was looking for anyone who could say they had done it and it works (or doesn't).