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: Ceramic caps
Date: Oct 29, 6:12 pm
Poster: Jim Lux

On Oct 29, 6:12 pm, Jim Lux wrote:

> they are not too difficult to find at prices of 0.1-0.5 of list. Large (1500 pF, 40KV) doorknobs can cost upwards of 100 dollars apiece new. I would expect pricing comparable to that of new ceramics, or maybe slightly less to "prime the pump".

Probably $100 each, or so..

You'll spend far more than that with all the spark gaps and hardware, etc. Unless, and this is particularly appropriate for us hobby oriented fusorites, we trade nominally free time for money.. Triggered Spark Gaps are expensive to buy, but the materials are cheap. Likewise suitable insulating support structures. Bulk PE sheet is inexpensive and relatively easy to weld and thermoform, but time consuming.