ok I allready seem to have read that buildlog.
My laser related parts and optics also come from coletech. I allready have the optics but laser is really the last thing I'll buy in the whole setup, so not for me yet
I must say that I am a little affraid of 25000V (even at littkle amperage) so thats why I want to be very sure I can safly and securely connect the leads from PSU to tube.
I also will go this evening to a special shop that does only sell compressed air parts to see what tube and fitting I need to connect the air nozzle on the coletech laser head to my tube, since I don't know anything about these connections. I allready measured a 6mm hole on some kind of pressing connector, so I'm pretty sure there will be a standard connector type for this :=)