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  1. M

    Test load and laser driver

    Hi, I made my own test load from diagrams around the web. I opted to go for 1x to 6x 1N5408 + 1ohm 5W resistor all in series. I have some rubbish Chinese drivers that are not behaving how I thought they would. Either my test load design is bad or 2x drivers are bad. Any thoughts welcome. I...
  2. M

    Gball lens remove

    I know this is an old thread but directly relates to my query. I have found a "recapped" nubm08. Appears to have the standard capping on this without gball. Would this be okay for longevity?