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  1. lasingfox

    Absolutely Beautiful Laser Rainbow with Krypton Argon

    yea its my omni RYB but really any RYB krypton argon should do.
  2. lasingfox

    Absolutely Beautiful Laser Rainbow with Krypton Argon

    not much to say. enjoy the pics! :) here's sort of a failed attempt but it still looks cool. I also tried the effect with a regular multiline argon.
  3. lasingfox

    Survival Laser Open Thread

    I don't want to get too involved in this but, I sent an email last year to Gary with the issue. Just wanted to show that it was brought up to him and he's known for some time.
  4. lasingfox

    Helium Neon Laser Pointer

    I used the 12v version of that PSU and I had to end up chewing up the resin to make it all fit. Its a big mess on the inside but it all works, . Ideally though, I would want to use these snazzy cylindrical voltex ones but I decided to cheap out...
  5. lasingfox

    Helium Neon Laser Pointer

    heh, without that, it would just look like a normal laser pointer. plus it gives me more room to work with inside :)
  6. lasingfox

    Helium Neon Laser Pointer

    hey hey, I recently built a HeNe pointer out of this cool old pointer from the 90s. The case was chonky enough to fit a HeNe so I decided to cram everything in there and hope it all works. Also doubles as a taser since the anode is poking out the tip. might need a ground wire but hey, can't do...
  7. lasingfox

    Tunable Helium Neon Laser

    here's a nice pic of the cavity beam :)
  8. lasingfox

    Tunable Helium Neon Laser

    This thing is going above and beyond! i'm now getting a bit of green! this thing isn't even rated to do that!
  9. lasingfox

    Tunable Helium Neon Laser

    all better. :)
  10. lasingfox

    Tunable Helium Neon Laser

    I read that the tube needs 2.2kV and the recommended current is 5.25mA but I just sent REO an email to verify.
  11. lasingfox

    Tunable Helium Neon Laser

    after a long tedious journey of rotating and cleaning the prism, I finally got it to lase at full power. the main issue was a thin layer of dirt on the brewster and prism which I could wipe off and with every pass, I saw an increase in power. It was incredible! I got about 3.65mW of 632.8 and...
  12. lasingfox

    Tunable Helium Neon Laser

    will do. i'm always happy to learn more about these beautiful things. I think i've seen you around in a few servers i'm in so i'll give you a ding if I have any more questions. thank you.
  13. lasingfox

    Tunable Helium Neon Laser

    i'll save soaking for a last resort for anything. I just hope the higher current really has that much of an effect.
  14. lasingfox

    Tunable Helium Neon Laser

    ah, i'll add that to my brain. thank you HeNe guru for your insight.
  15. lasingfox

    Tunable Helium Neon Laser

    heh, gas lasers are the best! they are way more interesting and educational than diodes. plus the lower powers and exotic wavelengths make them perfect for viewing in person. i think i only own a couple diodes and an opsl.
  16. lasingfox

    Tunable Helium Neon Laser

    also can you give me some sources for this? I've found a bunch of conflicting info on the helium isotope to soak hene's in
  17. lasingfox

    Tunable Helium Neon Laser

    that would make a lot of sense, haha. I'll keep that in mind. thank you. i've definitely had my fair share of oscillating tubes.. it's the worse noise to hear when you go to fire up a tube that just came in. but, i'll let you know when the brick comes in and how it likes the right current. :)
  18. lasingfox

    Tunable Helium Neon Laser

    nope, I got this one from a friend. he recently bought another tunable so I traded him an argon ion for it. but the catch was, I had to fix it up. the psu blew up so he had to remove the tube and put a new one (which misaligned everything more). this brick maxes at 4.85mA but, I have a 5.5mA one...
  19. lasingfox

    Tunable Helium Neon Laser

    oh it has a dust cover. i just removed it so I could rotate the tuning prism without putting stress on the brewster. I cleaned everything and then popped the cover back on. I also got it pretty much aligned and even got a tiny amount of 612nm! I'm waiting on my LPM to arrive and then i'm gonna...
  20. lasingfox

    Tunable Helium Neon Laser

    I got it more or less aligned! only lases at 632.8 which could be a number of things. I've been running it all day to try and clean up the gas but it's probably also low on helium and im only running it at 4.5mA instead of its suggested 5.25mA. still this is good progress! now i can soak it...


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