Greetings,

We have a Telerac 150 stabelized HeNe laser that no longer seems to lase. We have been troubleshooting and have narrowed it down to a possibly contaminated/sputtered tube. It is unclear if we have a Zygo tube or Melles-Griot tube, but are looking into options for repair. The symptoms appear to be: the laser tube will glow a reddish color, and a blue spot will come out, but nothing that indicates actual lasing.

My team and I have been trying to find a repair site. We've reached out to Holo Spectra Laser,who repaired our laser 10 years ago, with no response through any medium of communication. We've browsed Sam's Laser FAQ, and reached out to Meredith Instruments (directed us back to Sam's regarding not knowing the tube type), Cascade lasers (no response, but sent today), and Cambridge Lasers (who got back to us quickly, but don't service HeNe's).

Does anyone know if it's an easy fix to get repair parts and install ourselves? We don't have any fear about doing this repair. We did remove the tube, and it seems pretty straightforward. We just don't know exactly where to go.

We can consider shipping the laser for repair as well, if that is an option..

We have some pictures of the laser I can post, depending on what information is needed.

Thank you for your time.