inventor Ted Eldred is shown here with his grandson at the City Baths
(the site of the first diving school in Australia) in April of 2005.
Ted is recognized as the inventor of the single hose regulator. He
introduced his Porpoise regulators many years before Rose Pro, U.S.
Sportsways sold their first models in 1956-57. Ted invented the
Porpoise single hose regulator in 1949 and sold his first one in 1952.
Air Liquide bought him out in the 1960's and supressed his regulator,
but some were made to fullfill the existing Royal Australian Navy
contract. The Porpoise regulator shown on the right is a Royal
Australian Navy model, owned by Stephen Taylor of Australia. Ted
confirmed it to be the last ever sold to an individual.
Unfortunately, Ted passed away on August 27, 2005. --Photos
courtesy of Stephen Taylor.
is a very hard to find non-magnetic U.S.
Divers Conshelf VI military regulator. These were introduced in the
mid-1960's, replacing the non-magnetic DA Aquamaster. They were used by
Explosive Ordinance Disposal (EOD) teams when working around magnetic
U.S. Divers Aquamatic came out in 1957 and was their first single hose
regulator. This was the only regulator at that time with the side
exhaust, and both the side exhaust and the Aquamatic itself were
short-lived. The diaphragm had a built-in mushroom valve that allowed
the exhaust air to escape. This complicated diaphragm tended to perish
very quickly, and they are almost impossible to find in good shape
Scubair Sonic, from around 1971. Sold for approximately $110.00. The
first stage produced an audible warning when the tank was on reserve.
This was the last model of the series that started in the mid-1960's.
Many diving companies had audible reserves; Scubapro made the Mark VII
first stage, and U.S. Divers had an actual tank valve with a rod
extending into the tank. It hammered on the side when the tank was low.
Spinnaker regulator, circa 1978, made in Italy. Very scarce in the USA,
but made known from the movie "The Deep", starring Jaqueline Bisset.
Very small and lightweight second stage, but poor quality and prone to