Search found 1446 matches

by Dennis P Brown
Mon Jun 11, 2018 12:43 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Does this look sufficient for a proof of concept fusor?
Replies: 7
Views: 763

Re: Does this look sufficient for a proof of concept fusor?

Besides a base, you will need some type of gasket to form a 'soft' seal to the edge of your bell jar. That is critical for both a proper seal for vacuum and for safety. Cutting a ring of rubber like material to match the edge of your bell jar is rather easy. A simple base would be a large enough pie...
by Dennis P Brown
Wed Jun 06, 2018 1:59 pm
Forum: Please Introduce Yourself
Topic: Hello from Texas!
Replies: 2
Views: 336

Re: Hello from Texas!

Welcome. Richard, our primary poster has extensive Tesla coil experience among his many, many skills/knowledge. Best luck with your site and work.
by Dennis P Brown
Wed Jun 06, 2018 1:44 pm
Forum: New User Chat Area
Topic: Second Opinion on XRT
Replies: 5
Views: 528

Re: Second Opinion on XRT

Wow, that is really nice. I agree it is a steal at that price. Richard is correct, proper shielding is essential once you start operation.
by Dennis P Brown
Sun Jun 03, 2018 10:08 am
Forum: New User Chat Area
Topic: Professors near me?
Replies: 2
Views: 280

Re: Professors near me?

Glad to hear your interested in fusors. This is the place to start. Next, you need to read the FAQ's in the various areas offered here and get a good idea of what a fusor is, what parts there are, how they are assembled, and finally, rough ideas on the construction/operation. After that, one is read...
by Dennis P Brown
Wed May 30, 2018 10:23 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Detector noise problem
Replies: 13
Views: 1626

Re: Detector noise problem

In your low band pass filter circuit, what are the values of those resistors: Ohms, kilo-ohms or mega-ohms?
by Dennis P Brown
Wed May 30, 2018 10:07 am
Forum: Vacuum Technology (& FAQs)
Topic: Vacuum pump rebuild
Replies: 55
Views: 5707

Re: Vacuum pump rebuild

Well, 35 microns isn't very good for a two stage pump but that would be usable if the pressure didn't then go up. Are you certain there are no leaks? Vacuum gauges can and do fail (not that that is the issue but don't rule it out.) If you did not have new oil, than the ballast air run may fix the wo...
by Dennis P Brown
Tue May 29, 2018 11:20 am
Forum: New User Chat Area
Topic: Bad Plasma
Replies: 6
Views: 368

Re: Bad Plasma

Well, a plasma is a plasma but certainly, never use tap to create/secure connections (or for that matter, don't be tempted to use vacuum grease either but that is another issue.) If you really want a decent vacuum, getting inexpensive KF fittings and connecting tubing is money very well spent. See e...
by Dennis P Brown
Tue May 29, 2018 11:13 am
Forum: Please Introduce Yourself
Topic: Hello from Michigan
Replies: 2
Views: 350

Re: Hello from Michigan

A good turbo is an excellent first component (for the vacuum system) but only a minor one. However, the nice thing with such a high vacuum pump like a turbo is they can be a bases for many high vacuum experiments. If you are serious about real fusion - then you will have to obtain a proper power sup...
by Dennis P Brown
Sun May 27, 2018 5:04 pm
Forum: Vacuum Technology (& FAQs)
Topic: High Vacuum Engineering Design, Analysis, and Build of a Small-Scale Multipurpose System
Replies: 51
Views: 5491

Re: High Vacuum Engineering Design, Analysis, and Build of a Small-Scale Multipurpose System

If your high energy charge particle device is so powerful, then you had better be aware of the x-ray hazard and be certain of your shielding.
by Dennis P Brown
Sun May 27, 2018 4:57 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: A theory of a possible method of fusion
Replies: 21
Views: 4574

Re: A theory of a possible method of fusion

You say "2 stripped down magnetrons " One does NOT use magnetrons for plasma excitation due to the danger. Any attempt is most likely to be fatal. Electrically sealing any such chamber properly is not something anyone is likely to succeed at and failure means exposure to a deadly level of microwave ...