Recent content by mrehorst

I'll look at taking the shutter out and see if the beam is on all the time. When I step on the foot pedal the cooling fan speeds up, so I guess the beam is off until the pedal switches it on and opens the shutter.

Thanks for the info! I ran it through a diffraction grating last night and saw 6 lines, 3 distinctly blue and three that were more green than blue. I noticed that with the beam off (foot pedal not pressed), I can see some blue light leaking from the back mirror on the tube- is the beam on all...

The boss was cleaning out a closet at work and was getting ready to pitch a dental curing light (LaserMed Accucure 3000) into the trash until I rescued it. When I got it home and looked at it I discovered it is an Argon laser. It has a LaserPhysics Reliant 300b tube. In spite of sitting in a...