This is the build of my Elenco Class II Laser Kit (LK-1). In this video I'm turning on the laser for the first time. The kit was a present to me in 1992 and I just found it in mint condition and finally built it.
This file, which was originally posted to
HeNe Laser Build, was reviewed on 19 February 2014 by reviewerIndeedous, who confirmed that it was available there under the stated license on that date.
This video, screenshot or audio excerpt was released under the Creative Commons license option on YouTubebefore August 2025. (YouTube changed the license version from CC BY 3.0 to 4.0 on August 1; this was not retroactive.)