LaserUser.com Forum (formerly RDWorksLab)

Hi Guys

I think my tube has gone but never experienced this before. The tube has a bright blue light and hisses when I pulse. When I pulse the meter needle jumps to max. Ive only did it a few times and hope I havent damaged the power supply. There is no laser coming out the tube at all. It has been lacking power lately and I hope its just the tube, not sure about the power supply so hoping for some thoughts, thanks guys.

Joe

See what you get at the #1 mirror, if nothing, then most likely one of the interior mirrors has come lose. Time to get a new tube in that case. If you have been running it above working power / temp, there's a good change the adhesive failed.

Thanks, buying new tube