Below you see my smaller air-cooled NEC Argon laser head GLG3105 and a HeNe laser, next to my old linear power supply (see here for a description; in the mean time I have rebuilt it into a much better switchmode power supply):
The heart of the NEC argon head is a tube GLTZ921:
what I am going to do with it ??
Here some of my early (mid 1970's), admittedly only partly successful, attempts on lasers:
A Dye Laser running with Rhodamin 6G, a pulsed (10W) IR diode laser, and a pulsed argon laser:
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