It shows the weird original diaphragm, which is a couple of metal plates with a sheet of rubber squished in between and draping down. I guess the retainer band made a good enough seal. Several people have made diaphragms like the original using the OEM plates and some kind of rubber sheet. I know of a couple that were made out of swim caps.
I tried to once. Mixed results. I also noticed the long fingered lever shown here.
I probably posted these before but I still think they are cool! Diaphragm and hoses by Jeff H.
I took it out for a test dive a few weeks ago. GoPro crapped out on me so no pics at present. Took the reg down to 50 feet of ocean water. It breathes just like my '58 Mistral. Never got any water in the exhaust hose, even head down.
Amazing reg! Hats off to Bill Arpin!
"The diver who collects specimens of underwater life has fun and becomes a keen underwater observer. .. seek slow-moving or attached organisms such as corals, starfish, or shelled creatures." (Golden Guide to Scuba Diving, 1968)
Blue Hoses from Scuba Museum
- I forgot to mention I got my blue hoses from Rob at the Scuba Museum. They are the new production silicone type... Identical to the silicone black, yellow, gray, and green hoses he sell but these are made in blue. He has blue mounthpieces, too... I'm going with the gray one on my DIVAIR so it will look like the blue hose/Hope-Page set up of the original regulator.
The Freedom and Simplicity of Vintage Equipment and
Vintage Diving Technique are Why I Got Back Into Diving.