what model is this laser in the start of the thread? It looks to be running well
That's a LASOS LGK 7872 ML02 (or ML05)
It is a 40mW multi-line.
You can find these on eBay from time-to-time. The prices vary widely (like most used gas lasers)
or you can buy one from me (with a PSU), a rheostat controller, and a fan for you to wire up, for $350, plus shipping
Hmm, Dave, the Lasos Multiline you're selling has a glass end bell/visible plasma?
Huh. I have a few EOL NEC tubes with glass end bells that look just like that. They're too old to lase, but you still can see the plasma. Do the lasos tubes run on a really low voltage (~85v or so if I remember right) like the NEC tubes do?
Yes. The main power out of the PSU is 100V.
sry fo bumping old thread
what wavelength is that
The wavelengths in Dave's post I believe.