Tank ratio and guages

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.Recently I bought a jewelry making acetylene set up.  It has a 40 cf acetylene tank.  I'm thinking I'd like to buy a oxygen tank and use what I have for additional (home, farm, auto) applications.  Not my full time job, but something that needs to get a job done.  No Mickey Mouse, if I'm going to do it I want decent stuff.  What is the ratio for oxygen to acetylene?  I was told 1.5 : 1 (O to A).  Also the gauges on the acetylene tank are Smith gauges.  Are these good gauges?  If not, I'm looking for a recommendation.  Also is there a torch tip set I ought to explore?  If I'm missing something I'd appreciate a heads up.Last edited by nitpicker; 03-16-2013 at 12:58 PM.Reason: new info and spelling
Reply:smith equipment is some of the best. Their torches would be a nice addition. I think more like 2or3 to one on the oxygen, if you do much cuttingMiller Multimatic 255
Reply:Smith are good gauges, so are the torches.  I just finished posting about this, but the 40 cu foot acetylene tank is going to limit you to 1/16" steel or thinner.  Can't run tips any bigger or you will pull acetone out of your tank and that's bad juju for you.
Reply:Looking for that post.  Have you a date?