So with the upcoming release of the Argonaut Kraken, I started thinking about the Voit Trieste that I've had sitting in my parts bin for almost 2 years. I had intended to get around to rebuilding it but things get in the way. I figured I would build my own "Pegasus" or as close to it as I could get.
If you guys remember my last thread where I rebuilt a Voit Trieste, I kept that one mostly stock with the original cans but made an improved diaphragm. Unfortunately that regulator was rebuilt for a friend and has not really seen any diving since I rebuilt it.
Probably two years ago, I had purchased a machined HP adapter from Herman and an upgraded balance chamber with back-up o-ring from Greg. I didn't realize I had them until I started rebuilding this regulator.
Thanks to Rob at the Scuba Museum, I bought some modified FX cans, gray hoses, gray diaphragm, gray Voit mouthpiece from and some miscellaneous parts from Bryan at VHD (new HP aqualung poppet, etc), I finally had all the parts to complete my little project.
Like the Voit MR-12, I find working on the Trieste to be very easy. Once I thoroughly cleaned the parts, I had this up and running in no time, installed new duro 90 o-rings, new Aqualung HP poppet with upgraded balance chamber and conshelf pin cut to 0.630". The 2nd stage is the original Trieste one, I haven't made any modifications to that yet. Adjusted the IP to ~135psi at 3000psi and she's holding steady with no creep and very responsive.
Like the other Voit Trieste I rebuilt, this is an early model (serial 00860). On the left side where the optional reserve would go I attached the machined HP adapter so I could use an SPG. On the right side there is one LP port that I attached a 3 way LP splitter so I can run modern accessories and my drysuit.
She's a beauty! She'll be pool tested this weekend or I may forgo that step and go right into cold water sea trials. She'll have to suffice until I cough up the dough to purchase an Argonaut