In this space, visitors are invited to post any comments, questions, or skeptical observations about Philo T. Farnsworth's contributions to the field of Nuclear Fusion research.Subject: Re: Yet another fusor attempt
Date: Sep 22, 7:55 am
Poster: Richard HullOn Sep 22, 7:55 am, Richard Hull wrote:
>I will mention that I planned to insulate the high-voltage leads / structural supports for the grids with multiple coaxial layers of glass tubing. Is there a better plan for doing this that anyone can recommend?
Again, in earlier postings I discussed the use of alumina tubing (McMaster-Carr) which is also made to telescope in several diameters. The alumina tubing needs a diamond wheel to cut, but it is worth it. I have used this arrangment since fusor I for all central grid stalks and it works well. It does require that the entire inoput assembly be constructed around the use of the tubing and not picked up as an afterthought.
Glass should be OK as well, just less refractory.
Richard Hull