Folks,
for some reason ebay has a higher than usual set of CO2 lasers for sale. I thought I'd call it to your attention in case you're in the market. I am not selling any of them and wont profit from this message in any way.
The auctions. This one:
http://cgi.ebay.com/ws/eBayISAPI.dll...515989316&rd=1
I cant comment on its condition but it has the unmistakable look of a RF-excited luxar. I have some experience with this brand and it could be really promising for a 25 watter. If it is a luxor it means it will be impossible to get documentation from the original company, but I could give you some info on required circuit diagrams, duty cycles, and cooling. See my docs at this site:
http://www.nilno.com/laser_dir/luxar.html
This is a 20w tube, looks like it originates from medical equipment:
http://cgi.ebay.com/ws/eBayISAPI.dll...515342106&rd=1
sort of a kit, sort of promising.
Another tube, 30 watts:
http://cgi.ebay.com/ws/eBayISAPI.dll...515933129&rd=1
owen