Search found 10908 matches

by Richard Hull
Sun Oct 21, 2018 5:51 am
Forum: FAQs: Vacuum Technology
Topic: #4 FAQ: vacuum gauges - pressure measurements
Replies: 6
Views: 12460

Re: #4 FAQ: vacuum gauges - pressure measurements

Most landing here are common folk and not professional vacuum physicists or professional meteorologists. Likewise, the inexpensive vacuum gauges they are most likely to encounter will be in microns. I have already advised these common Joes that when they submit a paper to Nature, or the Journal of P...
by Richard Hull
Sun Oct 21, 2018 5:05 am
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: LENR / Solid State Fusor
Replies: 4
Views: 98

Re: LENR / Solid State Fusor

While I don't push any fusion method as, thus far, 100% have failed consistently. I fear ITER is just the largest yet to probably fail as all the others. I do not have any more animosity to cold fusion or LENR-CANR than to any other glorious paths to fusion which are supported by the "anointed" on w...
by Richard Hull
Sun Oct 21, 2018 4:54 am
Forum: New User Chat Area
Topic: eBay alternatives
Replies: 1
Views: 65

Re: eBay alternatives

To be successful on e-bay when buying vacuum parts and items a good grasp of what mates with what is a must. You get a handle on this only through study and reading the vacuum forum here and looking at the many images of systems in images du jour forum. The person who knows nothing of vacuum gear ca...
by Richard Hull
Sun Oct 21, 2018 4:50 am
Forum: Please Introduce Yourself
Topic: Hello from Arlington, TX, USA
Replies: 1
Views: 48

Re: Hello from Arlington, TX, USA

The best book that will give a good technical overview is a very old one. It covers all of the early fusion attempts in well done overviews and their short comings. "Project Sherwood", By Amasa Bishop. Bishop was an early head of the AEC fusion program. The book is a small hardback, very readable, v...
by Richard Hull
Fri Oct 19, 2018 7:36 pm
Forum: FAQs: Vacuum Technology
Topic: #4 FAQ: vacuum gauges - pressure measurements
Replies: 6
Views: 12460

Re: #4 FAQ: vacuum gauges - pressure measurements

We have had so many people here ask if the common 270 degree sweep, round, direct reading gauge is good enough for fusor work, I felt compelled to amend the very beginning post of this FAQ to lead off with a statement that such a gauge will not do for fusor based vacuum readings. Dare I hope folks w...
by Richard Hull
Fri Oct 19, 2018 7:20 pm
Forum: Vacuum Technology (& FAQs)
Topic: Vacuum kit suggestions
Replies: 3
Views: 137

Re: Vacuum kit suggestions

The two stage vacuum pump looks OK. However, the vacuum gauge is not good for the vacuum needed for even a demo fusor.

Richard Hull
by Richard Hull
Fri Oct 19, 2018 4:29 am
Forum: Announcements and Site Administration Topics
Topic: Abstracts posted for 20th US-Japan IECF Workshop
Replies: 4
Views: 447

Re: Abstracts posted for 20th US-Japan IECF Workshop

A study of the original Desert cart fusor demo'd before the AEC by Hirsch and Meeks in 1967 utilized a heated filament and ionizer grid outside of the anode grid. The cubic system takes advantage of the sharp high field emission points. I have mused over the cross and Tee type small, successful fuso...
by Richard Hull
Sun Oct 14, 2018 4:30 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Frequency effect in the operation of a MOT.
Replies: 4
Views: 423

Re: Frequency effect in the operation of a MOT.

I have not responded yet to allow the experiment to be done as this is the best teacher of all. Something you do to learn. In general, an iron core laminated transformer designed for 60 hz cannot be used at much higher frequencies due to the mass of iron needed to make it work at its rated 60 hz fre...
by Richard Hull
Fri Oct 12, 2018 6:50 pm
Forum: Please Introduce Yourself
Topic: Greetings from Spain.
Replies: 2
Views: 209

Re: Greetings from Spain.

Any thing that is desired to be obtained is always worth the effort needed to obtain it. This is especially true if it is to obtain knowledge and skills.
Welcome to the forums, Cai.

Richard Hull
by Richard Hull
Thu Oct 11, 2018 4:36 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Jan Ruge Fusion Attempt @ Chaos Darmstadt
Replies: 13
Views: 1725

Re: Jan Ruge Fusion Attempt @ Chaos Darmstadt

60hz multipliers suffer from the need to have larger capacitances, (dangerous energy storage), to have significant current capability. High frequency multipliers do far better with lower stored energy capacitors. Unfortunately the initial high voltage transformer is typically weak and not capable of...