In 1967 I built the ruby laser from the design published in the November, 1964 issue of Popular Science Magazine. I still have it and it still works and my son is going to use it for a science project. I am trying to obtain a copy of the Supplemental Data Sheet referenced at the end of the PS article. I originally sent for it and received it from PS, but is has been misplaced over the years. It contains important information including a specific procedure for reconditioning the 4 large e-caps used in the xenon flash tube trigger circuit, which is what I must do now since it has not been used for a long time. If you have a copy of the Data Sheet, I would greatly appreciate your
sharing it. If you know where I can obtain a copy, please let me know where and how.

I have contacted the PS customer service department, but they have come up empty so far. All they have offerred is a copy of the article, which I already have and which is readily available on line. I would be grateful for any assistance or suggestions in this regard. Thank you!

I'm looking for the data sheet as well. Has anyone found their old copy? :) robbak11@hotmail.com