There has been a discussion on a different thread about whether a double hose regulator is "vintage" or "modern," based on whether it has low pressure and high pressure ports (modern configuration) or lacks that ability. I wanted to show that these features have been available for many years on different double hose regulators. Here are a couple of examples:
This is a Sportsways Hydro Twin regulator, which featured both low pressure and high pressure ports. This regulator was available in the 1960s. So those were produced early, but are still considered "vintage" regulators.
Here is my Trieste II regulator, which you will note has a MR-12 octopus on it, SPG and a LP hose for my inflator. I bought it new in the 1970s, and have been using it ever since. It is highly modified, and I would put it up against any double hose considered "modern" today for breathing characteristics.
Here I'm diving my Trieste II regulator with an octopus, LP inflator for my dry suit, and SPG in about 1975.
Even so-called "vintage" regulators can be configured with a double post valve from Sherwood to give the use of a second single hose regulator, which has LP and HP ports.
This is my Mossback Mk 3 regulator, which is considered a "modern" double hose regulator (although very limited numbers were manufactured). It basically uses an Aquamaster second stage, with a completely re-done first stage. I have used it for a number of years now. Unfortunately, it's successor regulator, the Sea Wolf, did not get the crowd funding it needed to be built. But the Kraken regulator is available, and is considered a "modern double hose" because of its breathing characteristics and it's configuration with LP and HP ports. But these features, considered "modern," were actually available many, many years ago. Here is the Aqualung Mistral regulator, which was manufactured by Aqualung for a couple of years to provide a "modern" double hose regulator to the diving public. It was not successful, and was dropped.
So my question is, what do you consider a "modern double hose regulator"?
SeaRat
This is a Sportsways Hydro Twin regulator, which featured both low pressure and high pressure ports. This regulator was available in the 1960s. So those were produced early, but are still considered "vintage" regulators.
Here is my Trieste II regulator, which you will note has a MR-12 octopus on it, SPG and a LP hose for my inflator. I bought it new in the 1970s, and have been using it ever since. It is highly modified, and I would put it up against any double hose considered "modern" today for breathing characteristics.
Here I'm diving my Trieste II regulator with an octopus, LP inflator for my dry suit, and SPG in about 1975.
Even so-called "vintage" regulators can be configured with a double post valve from Sherwood to give the use of a second single hose regulator, which has LP and HP ports.
This is my Mossback Mk 3 regulator, which is considered a "modern" double hose regulator (although very limited numbers were manufactured). It basically uses an Aquamaster second stage, with a completely re-done first stage. I have used it for a number of years now. Unfortunately, it's successor regulator, the Sea Wolf, did not get the crowd funding it needed to be built. But the Kraken regulator is available, and is considered a "modern double hose" because of its breathing characteristics and it's configuration with LP and HP ports. But these features, considered "modern," were actually available many, many years ago. Here is the Aqualung Mistral regulator, which was manufactured by Aqualung for a couple of years to provide a "modern" double hose regulator to the diving public. It was not successful, and was dropped.
So my question is, what do you consider a "modern double hose regulator"?
SeaRat