You missed the tip on H20.... It is what regenerates the gas in cheapies.
You missed the tip on Xenon, it is needed for high power.
You missed the tip on electrode processing,
You need a tube oven.
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Yeah , I tried the go cheap with chop and pump on many gas lasers two decades ago... I learned. There is no such thing as cheap when there is 8760 hours in a year, and your client wants two years minimum.
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I spent three years working my way through college by often cleaning and rebuilding medical flowing gas co2s, and resealing the parts on Ebay. I've built my own Co2 tubes. I'll wager I have torn more commercial sealed tubes apart then you have ever seen tubes. My parts source was the largest reseller of medical gear in the Midwest. They had many brands of Co2 that I could pick up at 50$ a laser, because no one wanted an expensive commercial rebuild.
I know this beast.
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If you value your reputation, do it right. If you go anywhere near a vacuum or physics conference (and there also was one shirt at SELEM this year) you will see T-Shirts that say "In VACUO VERITAS". (In Vacuum is Truth) It is a reference to how difficult it is to get vacuum and plasma devices right. Take the time to do it right because your customers will rat out a bad experience on the Internet in microseconds.
This is not an easy industry.
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If you process a Hochuli cathode the way you would treat a Nickel cathode and vice versa your tube is dead, and both types are out there. BTDTGTS. Take the time to do it right and buy the gear.
Steve
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...