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Post by diverdon on Sept 1, 2014 18:30:04 GMT -8
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Post by fishnbeer on Sept 1, 2014 20:05:35 GMT -8
Howdy Don-
I have the same Poseidon Cyclon 300 as you but serial #52542. If I can remember correctly I bought it new sometime in late 70's. It is my favorite single hose reg as it is easy to work on and adjust. I have a repair manual on it somewhere in my stack of files. I have an old buddy who bought his at the same time and still uses it today as his favorite go to reg. He used to work at a dive shop that repaired them for the local Air Force Para Rescue Unit based out of Sacramento in the 80's. Parts are hard to find but available on line if you search hard.
Jerry
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Post by SeaRat on Sept 1, 2014 20:13:51 GMT -8
Don,
We used the Cyclone 300 on the Warm Mineral Springs Underwater Archeological Project in 1975. So I know it was available then. (I actually used an MR-12 first stage with a White Stag second stage.) I'll check other sources soon about that.
I think you can use the Cyclone 300 with the Nautilus by raising the tank slightly so it's higher in the Nautilus.
Now, about the Cyclone 300; it's a great-breathing regulator, but we did have two malfunctions. In most malfunctions on single hose regulators, the regulator free-flows and you have a bunch of air to breath, although it drains the air supply. But with these two malfunctions on the Cyclone 300, the air supply was shut off. Because of this, I highly recommend that you use this regulator only with a buddy; do not solo dive this regulator unless you have a pony bottle, or are confident about reaching the surface in an emergency.
John
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Post by george on Sept 2, 2014 3:51:27 GMT -8
The 300 was a good reg. I have used nothing but these for the last 40 plus years, I have moved up to the 5000 first stage it is a great regulator and the cave divers like them as well. The parts for the 300 are getting hard to find.
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Post by regulator68bj on Sept 2, 2014 6:01:28 GMT -8
Divercdon Have some info on the "Cyclon" to big to post here.
litremeter@talktalk.net
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Post by diverdon on Sept 2, 2014 6:51:48 GMT -8
Hey Jerry, I'm glad to hear about your use of this reg. I heard you used it on a dive to Cordell Bank. Sounds like fun. I had a newer Poseidon (Jetstream) at one time but when the LDS went bye bye I had no way to service it so I sold it. Not sure what to do with this one. Yet... John, I don't like the sounds of that. I thought regs were suppose to fail "open", if at all. I did a quick search and found some info where the hoses failed on a few of these (I believe the same vintage) during a dive resulting in a recall? www.cpsc.gov/en/Recalls/1977/Safety-Replacement-Program/ I sure would hate to have that happen while at depth trying a new peice of equipment. Hey John, (r~68bj) Thank you for the offer. I just sent you an email. Thanks again gentlemen! Don |
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Post by diverdon on Sept 2, 2014 7:16:02 GMT -8
Hey George,
Not sure how I missed your post? Were they all chrome or did they make black plastic ones like the Jetstream? Anyway, I believe I have a rebuild kit coming for it. I did a little trading with a fellow from the other board for one of the extra hoses I have for my Dacor CVS.
I still have a couple if anyone is interested...
Don
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Post by nikeajax on Sept 2, 2014 8:00:30 GMT -8
Don, please call my friend Jim Steele:
Steele's Discount Scuba
5987 Telegraph Ave, Oakland, CA 94609
(510) 655-4344
Tell him you're a friend of mine: I'm pretty sure he has parts, this is my LSD! I saw a Cyclon sitting on his desk, okay part of one at least...
Jaybird
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Post by george on Sept 2, 2014 8:25:45 GMT -8
The early Cyclon had a metal second stage tube and around the 80 they came out with a plastic tube second stage it was a little cheaper in price. I prefer the metal ones, the jet streams were plastic. the First stages from the late 300 to the 5000 were similar in operation, Poseidon has had problems with the parts distribution in the US for quit some time now, but I still like'm. I should mention that Poseidon offers a life time warranty on all the regs. if you have them serviced by a authorized repair station, I use a place in Fla. www.scubadelray.com/page3.html they do great work. |
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Post by nikeajax on Sept 2, 2014 9:22:50 GMT -8
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Post by SeaRat on Sept 3, 2014 17:07:38 GMT -8
Concerning the Cyclone 300, I have a paper written somewhere in the 1970s on the breathing characteristics of this regulator. Titled "A Comparative Study of the Breathing Characteristics of Poseidon's Cyclon Super 300 Regulator," by Dr. Richard J. Boyd, Petrie Scubalab, Madison, Wisconsin 53713, it shows that the Cyclone 300 was one of the best regulators of the time. If you will give me your e-mail address in a PM, I can scan this to a pdf and send it to you.
John
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Post by SeaRat on Sept 3, 2014 17:10:33 GMT -8
Jaybird, This has great info in it; I had always thought that the La Spiro Royal Mistral was almost identical to the USD Mistral, but this diagram shows it to be a balanced single stage regulator. That's great news to me! Thanks for sharing these links. John |
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Post by diverdon on Sept 3, 2014 17:33:15 GMT -8
Don, please call my friend Jim Steele: Steele's Discount Scuba 5987 Telegraph Ave, Oakland, CA 94609 (510) 655-4344 Tell him you're a friend of mine: I'm pretty sure he has parts, this is my LSD! I saw a Cyclon sitting on his desk, okay part of one at least... Jaybird Thank you JB, If I don't get what I need from Karl I'll give him a shout for sure! And thanks also for them links. There tons of good stuff there!!! Don |
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Post by diverdon on Sept 3, 2014 18:04:51 GMT -8
The early Cyclon had a metal second stage tube and around the 80 they came out with a plastic tube second stage it was a little cheaper in price. I prefer the metal ones, the jet streams were plastic. the First stages from the late 300 to the 5000 were similar in operation, Poseidon has had problems with the parts distribution in the US for quit some time now, but I still like'm. I should mention that Poseidon offers a lifetime warranty on all the regs. if you have them serviced by a authorized repair station, I use a place in Fla. www.scubadelray.com/page3.html they do great work.
Hey George,
Thanks for that information. Do you know if Poseidon requires consistent annual servicing for their warranty to remain in effect. I remember my LDS saying that Scubapro has a similar program but if you can't provide annual records the lifetime (parts only) warranty becomes void. Thats very interesting to me and I can't wait to find out more about that.
Thanks again,
Don |
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Post by nikeajax on Sept 3, 2014 19:27:32 GMT -8
Our friend Jerry used one of these to dive Cordel Bank, GASP-CHOKE  , here's what he said:
"I was part of the team that called themselves the Sacto Team as the team was made up of experienced divers from the Sacramento, CA area. On several occasions our team dove with triple 80's on our backs. The spare 80 tank was mounted on the back of the doubles and was used to power an air lift to suck up sediment samples at the 200+ depth. My main job on the dives was doing deep photography and shooting 16mm film u/w. In fact most of my film footage was used to document the dives. For the dives I used double 72's and a Poseidon Cyklon 300 reg that worked awesome at the deep depths. For decompression we had a T-bar at 10 feet mounted to a surface float and had spare 72's mounted on the T-bar for extra air decompressing. The spare tanks mounted on the T-bar were a necessity as we would often run out of air during deco and had to breath off the spare tanks."If anything, you couldn't ask more of a reg, as this is easily one of the most challenging dives EVER!Jaybird |
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AND, please make sure to look at this: WOW 
, here's what he said: