I still dont know that much about ion lasers, but I do know they are really cool!!
So to learn, I just got one. Not sure on the true power, but it was listed as 5mw, but its a:
Spectra-Physics model 133 laser
with a PSU:
Spectra-Physics modal 233 exciter
Well when I got it, the tube came on one time then when out..So after taking the PSU apart I found a burned up wire, fixed it and it would light everytime,but would not laze. All it would do is make a very dim, but cool looking blue-ish,purple light (see pics). Then after it had warmed up some it would flicker and stobe..... then I found this wire (see pics), moved it and the took care of that... So after getting help from (daedal) and messing with it, I pushed on the top tube and it started working!! Now it works everytime you turn it on, unless there the AC is on in my room then it wont come on..I think the PSU is so old it cant take the dip in voltage. But it works,nice red beam,but it has a blue-purple ring around the main beam, which looks really cool!!!
djmatt