Sat Oct 01, 2016 5:44 pm
I rebuilt one for dive buddy of mine. It's a downstream second stage with a diaphragm first stage. It's kind of annoying because it uses a bunch of annoyingly small screws for the cover, the diaphragm, and also the exhaust tee. It's kind of a neat piece of history though. It uses a standard low pressure hose, and if I remember right the second stage diaphragm for an MR-12 will fit it. It breathes on par with any modern regulator. I hope that helps.
The impossible missions are the only ones which succeed. -JYC