Just to add a little more fuel to the fire:
I bought a set of oxyacetylene regulators in the early '70s. I also "bought" an oxgen cyulinder at that time. The guy I got the regulators from gave me 2 of those type B cylinders at the time. When I do need to weld, I can easily get enough acetylene from the type B cylinder, so I never bought a larger one. Since then I have acquired a couple more of them, so I can always have a spare or two full cylinders on hand. My welding cart has oxygen, type B acetylene and 20# propane cylinders on it. There are correct regulators on each bottle, with quick disconnects for the fuel gases. My only rosebud is for propane, although I have cutting tips for both gases. Works for me.
Last comment: It's not a good idea to lay an acetylene cylinder on its side.
Pete Stanaiits
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