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Post by cnotthoff on Jul 22, 2015 10:58:11 GMT -8
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Post by nikeajax on Jul 22, 2015 11:48:18 GMT -8
Again, thanks Charlie! John, I'm sure you can get a higher IP, but these are not a high pressure reg. The seat cones, as I stated before, are really flat, unlike the C-II, that has a very sharp seating area. I guess JYC was enamored with the name Calypso, because these two regs share maybe two or three parts: I think those are the band clamp, the screw for said clamp and the soft seat, oh, and the mushroom valve too... I thought I'd try to use the C-II spring, which is way more robust, uh-uh, nope, too big a diameter If someone was to take the "inlet valve nipple" to a machine shop and cut the cone to a sharper edge, you'd be able to get a more robust pressure out of it. I should have thought about the IP being too high, but again, I had a C-II second stage on it at the same time, and that was doing nothing but hold the pressure behind it. I had the adjusting screw backed all of the way out on the C-I and it just hissed at me like an angry cat! Jaybird
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Post by SeaRat on Jul 22, 2015 13:30:05 GMT -8
Charlie and Jaybird, I just checked my Calypso (original) with a Calypso II second stage on it too, and it was set at 85 psig! I upped it to 120 before it started leaking, but it leaked all the way down to 105 psig. So the specs Charlie gave above are correct, about 95 psig is the interstage pressure. I checked with Fred Roberts in Basic Scuba, and there they say to go with the same information as is with the DA Aquamaster, which is approximately 110 psig. What gave me pause is that I don't think at 95 psig there would be that much gas flowing when diving over 500 feet sea water depth, which is where Hannes Keller took this regulator. It is an amazing regulator for that time period. Keller took it to 1000 feet in the open ocean off Catalina Island, California. But that was a fatal dive, although not because of the regulator. www.divinghistory.com/id25.htmlwww.divernet.com/other_diving_topics/160537/the_atlantis_affair.htmlJohn
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Post by nikeajax on Jul 22, 2015 13:51:43 GMT -8
John, as I recall, this is a balanced regulator, so even though it's not squirting out massive volumes of air, it is a constant volume: so I would imagine that those divers "weren't doin' nuttin' crazy", so's long as you stay Zen abou'cher bizzniz, I would imagine that they would have been able to go to still even greater depths, providing the air held out, and the water did'na squish'em down too much JB
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Post by SeaRat on Jul 25, 2015 10:56:30 GMT -8
Just so everyone will know, here's what the original Calypso regulator looks like: John
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Post by SeaRat on Jul 29, 2015 17:25:46 GMT -8
Jaybird, I just found this diagram I put together a year or so ago about the VCR-1. This is not exactly the Calypso lever system, as this is the earlier version. This would be from the Professional Aquamatic regulator on the U.S. Divers Company side. John
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Post by nikeajax on Jul 29, 2015 18:10:46 GMT -8
Big John, thanks for that input! Here are some more images of my C-I: In that last image you can see he small hole behind the lever that holds the poppet still while you adjust the IP. This is the second easiest reg to adjust: to me, the Dacor Olympic is the easiest, insanely easy! Jaybird
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Post by cnotthoff on Jul 30, 2015 8:04:46 GMT -8
I enjoy the instructions from the manual to "insert a nail in the hole of the disc retainer body". That is also the only manual I have that was obviously written on a typewriter.
Today that would be a specialized nail available only to Aqualung dealers for $20.
Good Dives,
Charlie
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