Thanks for both the comments. I have experience with instruments and mechanisms similar to a regulator, and feel comfortable doing parts replacements. The regulators are stamped with R-2279 and R-2278. The torch was sold as a Linde torch, but ESAB now sells these. They are not high capacity regulato...

About 40 years ago, I worked for a large technical company, and found myself studying how to perform complex signal processing work to help materials people solve problems on large machines which made technically complex products. That materials lab had a bunch of expert welders in a couple of back ...

I'll add two cents, a little late. I have worked in an aerospace and research environment as a senior science and engineering type. Sometimes I hired people. Most were PhDs but there were lots of lab techs, and a few welders, pipe-fitters and trades people. While I never expect a suit for a trades p...