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  • lasermaster1977's Avatar
    Today, 16:03
    Greg, and any others interested, in case you didn't see this PDF I posted in another PLF post. I made one back in 1977 and was impressed with its capabilities.
    0 replies | 240 view(s)
  • nightlife's Avatar
    Today, 11:52
    I'm so glad that there is still someone who really knows their way around the old tubes ;) What grade of gas do you need, is this special made for laser filling or is there a product name for that special grade? Are you able to send a pic from your filling stand, i am very interested about...
    9 replies | 246 view(s)
  • mixedgas's Avatar
    Today, 09:35
    The beauty of an Innova is the ability to move the bore and get around the dust. Dust like that appears when it was used to pump a dye laser in the past, and as they say about Horses in the US, "Ridden Hard and Put Away Wet", generating four or more watts to pump the dye. It can go a long,...
    9 replies | 246 view(s)
  • clickamouse's Avatar
    Today, 07:59
    clickamouse replied to a thread Resources for Lumia in Lumia
    Greetings, all; I gave a talk yesterday to an ILDA Zoom thang about my new laser art piece, Alien Black Box. More info here: https://illuminatuslasers.com/alienblackbox.shtml This piece uses stepper motors to move the lumia disks, and people were interested in sourcing. Here is where I...
    22 replies | 122122 view(s)
  • nightlife's Avatar
    Today, 02:06
    Thanks Steve for all the information. I will now always let it run as long as i have time. Two things i have noticed. 1) small parts are sticking inside the front brewster. that might also be a big problem. They are "new" because from the last cleaning session the brewsters were clean. ...
    9 replies | 246 view(s)
  • mixedgas's Avatar
    Yesterday, 17:25
    see attached, this is typical of the 910,920,930 family of medical lasers... Your laser was the top deck under the wood lid of one of those... Around 250 KG without the crate and ophthalmic gear. Steve
    9 replies | 246 view(s)
  • mixedgas's Avatar
    Yesterday, 15:59
    Dean Glassburn closed, Evergreen Closed, Cambridge Lasers Closed, Dynamic Laser does Aircooled and He is closing the business. That leaves me for long tubes in the US, and I have the tooling and rare gas. I also have MRA magnets, the Pinchoff tool , Ion Pump, Turbo Pump, etc, so you would...
    9 replies | 246 view(s)
  • lasermaster1977's Avatar
    Yesterday, 11:30
    lasermaster1977 replied to a thread CYGN-B in The Lounge
    You big show off! ;) ;) ;) ;)
    944 replies | 1936921 view(s)
  • laserist's Avatar
    Yesterday, 10:22
    laserist replied to a thread CYGN-B in The Lounge
    https://youtu.be/_8JMVl-_KKs?feature=shared
    944 replies | 1936921 view(s)
  • lasermaster1977's Avatar
    Yesterday, 10:14
    lasermaster1977 replied to a thread CYGN-B in The Lounge
    Perspective, literally, visual perspective is the key here. Greg is correct. Each pendulum is on a graduating smaller length, front to back. Look closely at the start of the video, the long wooden board strip is not level...because of the different pendulum lengths, longer in front, shorter in...
    944 replies | 1936921 view(s)
  • Greg's Avatar
    Yesterday, 09:45
    Greg replied to a thread CYGN-B in The Lounge
    Could it be the pendulums are of differing lengths so each is swinging at a slightly lagging or leading period to the next?
    944 replies | 1936921 view(s)
  • nightlife's Avatar
    Yesterday, 05:29
    Now it runs since 2hrs at 25Amps and the voltage dropped from 223,9V to 223,4V. Do you have a U-I chart or field service manual etc. for this type ? Is mr. glassburn still active in laser business?
    9 replies | 246 view(s)
  • mixedgas's Avatar
    06-07-2024, 22:52
    Start running it now. Your laser is at over pressure. Mixedgas tube voltage is much lower then pure argon fill. Your tube is 10 volts too high from slow leakage that naturally occurs from the fill system Do Not use the Fill Solenoid. Do not Fill. Start running it daily for four hours or...
    9 replies | 246 view(s)
  • nightlife's Avatar
    06-07-2024, 22:24
    i ran it since 2009 till 2013 about 40hrs/year and since 2013 nearly zero till 1-2 h /year. The last few hours it ran 2021 :( with about 3hrs I am able to check a powermeter yes. What do you mean with optics peaked? Optics should be clean but i can check it again. Its a mixed gas Ar/KR...
    9 replies | 246 view(s)
  • lasermaster1977's Avatar
    06-07-2024, 20:12
    lasermaster1977 replied to a thread CYGN-B in The Lounge
    Very cool pendulum video, Greg.
    944 replies | 1936921 view(s)
  • mixedgas's Avatar
    06-07-2024, 14:55
    OK, I need to look at an MRA field install sheet before I comment, but your tube I-V plot actually is not that bad. That will take a day or two. How often do you run it? How many hours has it had in the last year? Correct sequence is to energize the ready solenoid, fill the intra...
    9 replies | 246 view(s)
  • lasermaster1977's Avatar
    06-07-2024, 10:33
    I just realized after reading this thread last month) that I know where a brand new, unused but stored for decades) pair of these are if anyone is interested. PM me and I will see if they are still available...most likely are.
    9 replies | 479 view(s)
  • nightlife's Avatar
    06-07-2024, 00:02
    Hello, is there anybody who is able to refill my I90-MRA tube? It actually works but has lost in power in the last years. For information, the actual measured currents and voltages are: 12,6A 177,3V (Start Current) 20A 207,4V
    9 replies | 246 view(s)
  • Greg's Avatar
    06-06-2024, 17:04
    Greg replied to a thread CYGN-B in The Lounge
    I'll accept a small fraction of the compliment, and consider the rest intended for the LII directors and the virtuoso animators and musicians they worked with, as well as all those great bands that underlie the history of recorded music.
    944 replies | 1936921 view(s)
  • swamidog's Avatar
    06-06-2024, 09:17
    swamidog replied to a thread CYGN-B in The Lounge
    it would be an honor, but i'd probably too busy scraping my jaw off the floor at the light you're making to remember how to work a radiator.
    944 replies | 1936921 view(s)
  • swamidog's Avatar
    06-06-2024, 09:16
    swamidog replied to a thread CYGN-B in The Lounge
    lol "So that's why Solomon's diamonds were never found. The myth of the killer ape is true!"
    944 replies | 1936921 view(s)
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