Fusion Message Board

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: HV insulator feedthroughs
Date: Nov 17, 1:19 pm
Poster: Stephen Coley

On Nov 17, 1:19 pm, Stephen Coley wrote:

As usual you are answering my questions before I get around to asking. I recently inherited my late fathers garage, and what I found inside looks like junk to most of those other people. Just so happens there were some rather unique sparkplugs I thought might solve some fusor problems. These plugs are ooooold. I believe they were originally bought for some kind of tractor, though I've seen them in a Whitney catalog, I think.

These are 18mm plugs and they are "rebuildable." The insulator is set into the body with a packing nut kind of arrangement and the inner electrode is also held in the insulator with a nut. The whole unit breaks down into its individual components.

In this case the center electrode could be replaced by the stainless rod "stalk" for the center grid, but I had not thought of trimming back the threaded part, seems I was thinking I might could use the threads for mounting the plug in my base plate - foolishly neglecting the effects the hv might have with the "stalk" so close to the body of the plug.

This plug is somewhat larger than your standard 14mm and the extra space might let you dump more power through it. ?

Planning for down the road, miniature plugs might be used for the insulated leads into an ion gun?