- May 14, 2022
This 1986 NEC model GLG5800 comes from the estate of Don Gillespie. It's a nice addition to the other large He-Ne lasers in the archive. Specified power from that year's Laser Focus Buyer's Guide is 50mW but it probably gave much more with a new tube. This tube is broken and up to air.
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I visited Dale Harder at HHR Lasers in Cleveland a few years ago, and bought most of his old Laser Focus and Photonics Spectra magazines. It takes real dedication to pump those old tubes but I'd be surprised if he is still doing it. If so, kudos!Contact hhrlasers if you want a new tube. He has even pumped the 100mw monsters.