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Those who are so quick to be critical of the companies in China that manufacture lasers need to be aware of the fact that many, if not most companies here in the USA purchase their products from those same Chinese companies, triple the price, place their name/label on the instrument, and give it...

Good idea for information exchange about these incredible instruments.   The first laser I purchased was a Spectra physics,  very large enclosure, and  output was probably 5-10 milliwatts.....I bought it in 1976, kind of pricey for a low output instrument,  but lots of fun. I have 4 green...