I need help with an acetylene regulator rebuild

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I have these two very old regulators (1973 maybe). I have a problem with surges in acetylene blowing the flame out. I need help locating some components. There is a needle valve that I believe is the source of the problem. It is stamped 0002 on it. Here are some pictures:Top:Bottom:All apart, outer housing, plunger, spring, strainer, and inner housing.It would be nice to have a new one, but I believe it is still workable, the diaphragm, approx. 34MM/1.33Inch in outer dia.
Reply:get ahold of oadoctor, he is a member here on the siteDynasty 200DXPassport plus w/ spoolmate 100victor 315c oxy/(act and prop)Miller digital elitemilwaukee power tools
Reply:Post pictures of regulator showing model number or PM and I can get you the parts.JimOAdoctorwww.regulatortorchrepair.com