I apologize if I'm in the wrong area for this question. I'm very new to lasers and want sure. I recently purchased a helium neon laser at a yard sale for a couple dollars. I dont have the power supply for it but have tried one that is matching at 12 volts unsure of amperage. Nothing has made the laser function, however the led power indicator is illuminating. Is this thing worth spending any time on or should I just trash it?
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