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  1. Hemlock_Mike

    Killer deal on USB spectrometer! (update: legitimate!)

    Paul -- I PM'd Sta and maybe he has some documents which they say are included. Mine seems way off but no calibration instructions. HM
  2. Hemlock_Mike

    Killer deal on USB spectrometer! (update: legitimate!)

    I got my spectrometer today -- FAST shipping. I plugged it into two computers and the systems only recognized the camera. NO software. I was told that I need to download the software from their website -- What a mess -- I can occasionally get a display but no calibration instructions or...
  3. Hemlock_Mike

    Killer deal on USB spectrometer! (update: legitimate!)

    I should mention that I defocus the output for glue. Actually, my dentist's "UV" device looks more 450 nM. HM
  4. Hemlock_Mike

    HEYyyyy ... Will the blackbust 8 drive a 405 NM diode with about 12V input? Mike

    HEYyyyy ... Will the blackbust 8 drive a 405 NM diode with about 12V input? Mike
  5. Hemlock_Mike

    Killer deal on USB spectrometer! (update: legitimate!)

    I try to talk my dentist into giving me outdated glue. He can't believe my 405 lasers! RAPID cure. HM
  6. Hemlock_Mike

    Killer deal on USB spectrometer! (update: legitimate!)

    Lasersbee -- Thanks for the update. I may affix the "loose stuff" with a few drops of UV cure glue. He says that I'll have the tracking number tomorrow. :whistle: HM
  7. Hemlock_Mike

    Killer deal on USB spectrometer! (update: legitimate!)

    He asked me to wait 3-4 weeks. Its now been 4 weeks and no tracking number or communication.:yabbmad: I questioned again through ebay. HM He replied quickly and says I'll have a tracking # tomorrow.
  8. Hemlock_Mike

    Eye safe laser to kill mosquitoes ?

    I saw one of these laser killers once on the net. It was an enclosed chamber which drew bugs in where they were zapped in a closed controlled environment. I believe they used a small fan or attractant in the "death chamber". Detection and zapping in a small area seems easier. HM
  9. Hemlock_Mike

    best wavelenght to ionize air

    F...... 1 mm lenses are difficult to reassemble after you drop it and step on it. HM
  10. Hemlock_Mike

    How to manage frozen pipes

    The use of a large pipeline welder worked for many years around here in north Iowa. HM
  11. Hemlock_Mike

    How to manage frozen pipes

    If you have metal pipes, connect a welder from one end to the other. Get a bunch of watts going through. HM
  12. Hemlock_Mike

    New high power Rocket launch

    That small Estes rocket was called a "Streak". 1/2 A to an A engine recommended. My friend got tired of it and launched with a C6-7 ---- We found it three days later beside a gravel road 4 miles away! HM
  13. Hemlock_Mike

    Remember to exercise those argons!

    Scott --- Light up the tube but DON'T turn the key to lase. Let it warm a while, turn the key and if it clicks a couple times with no beam, wait longer. It has always worked for me. Don't let it sit there snapping to ignite. HM
  14. Hemlock_Mike

    ..........

    Chris -- I have an SSY-1 plus a couple little brothers made in Israel, both using low duty cycles for range finding. Mine have Q switch cells which self trigger and give a shorter pulse. As stated above, I started with good sized camera strobe power supplies but you need to find out the...
  15. Hemlock_Mike

    Remember to exercise those argons!

    I have a LASOS LGK 7872 ML02 ArI laser which I forget to light up often. I remember the days of vacuum tubes and those high power tubes often requires a warm up period. After about 5 months of non-use, I powered it up --- ~5 minutes of filament ON and only then, turned on the lase switch...
  16. Hemlock_Mike

    Making a portable CO2 laser?

    Portable CO2 can be done if you can find the parts. RF excited at 27.125 Mhz at 380 Watts can give 12 Watts of CO2. 04/26/2021 -- I still have it but I think the PWM went out on it. I need to look into it -- just takes time !!! HM
  17. Hemlock_Mike

    488nm diodes price

    PMAN - Looong ago, I called my pile of burned diodes my "dead heap" ! HM
  18. Hemlock_Mike

    Killer deal on USB spectrometer! (update: legitimate!)

    You dudes poked my interest. I had to order one --- Thanks --------- HM
  19. Hemlock_Mike

    Portable FAP Red

    The assembly is adjustable. "If you can't make it perfect, make it adjustable!" HM
  20. Hemlock_Mike

    Portable FAP Red

    Chris -- This is my condenser assembly ---- I have a simple SMA fiber input fitting and one to hold your PCX housing. I am being careful NOT to burn another expensive component. The fiber cable should protect the FAP if something goes wrong. I will be cleaning all optics before I bring...


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