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Thread: Patience is a virtue - The HGM-20S Laser Saga

  1. #1
    Join Date
    Jun 2008
    Orange County, CA

    Default Patience is a virtue - The HGM-20S Laser Saga

    This a continuation of my HGM-20 Argon Laser saga:

    Over a year ago, I brought home a HGM-20S Endocoagulator. I had no way to test it prior to purchase and when I brought it home, the tube did not light.

    After several very helpful responses from the Photonlexicon family ("mixedgas", "buffo", and "dsli_jon"), we determined that the tube was up for air

    Typically it ends there and this being a very rare laser, hopes of finding a replacement tube, at a reasonable price, was very slim. The laser sat in the corner of the garage gathering dust.

    Today, I am happy to say that I took delivery of an intact (verified with an Oudin coil prior to purchase and today after opening the shipping container) replacement HGM-20 tube!

    Click image for larger version. 

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    I'll post picture after I install the tube and connect the power supply. Hopefully the tube will light.
    Attached Thumbnails Attached Thumbnails IMG_0347.JPG  

  2. #2
    mixedgas's Avatar
    mixedgas is online now Creaky Old Award Winning Bastard Technologist
    Infinitus Excellentia Ion Laser Dominatus
    Join Date
    May 2007
    A lab with some dripping water on the floor.


    Its a light mode laser, so make sure the light pickoff is installed.

    Qui habet Christos, habet Vitam!
    I should have rented the space under my name for advertising.
    When I still could have...

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