Hmmmm - it very well COULD not be a laser tube at all - he bought all that stuff (I ASSUME he did, as that is what he told me) at auctions and such....He has 99% of his "stuff" just stacked up on a shelf, and rummages through it all to find what he needs - he is much less than organized with his stuff - but as far as him selling to be ascam - I doubt he even knows what over half of his stuff does, and was NOT too impressed with him personally when we met. Just my $.02 (U.S.) I doubt his IQ is out of the double digits - I know that sounds mean, but if you met him, you would know what I am talking about.