Search found 1487 matches

by Dennis P Brown
Thu Aug 16, 2018 10:50 am
Forum: Please Introduce Yourself
Topic: Hello Fusor.net
Replies: 1
Views: 21

Re: Hello Fusor.net

Welcome and I and I am sure many others here got there start looking for second-hand stuff. I once found a working varaic in a grabage dump.
by Dennis P Brown
Wed Aug 15, 2018 10:47 pm
Forum: Images du Jour
Topic: PBS Interpretation of a fusor...
Replies: 2
Views: 81

Re: PBS Interpretation of a fusor...

Outstanding presentation by PBS and that young Lady. Glad this got on youtube via an important station/system. You too, Richard, deserve some praise and notice for your efforts (and those that built/maintain this site) to bring fusion to not just USA kids but many through out the world!
by Dennis P Brown
Wed Aug 15, 2018 11:50 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: DIY hermetic feedthroughs: Has anybody done this?
Replies: 3
Views: 117

Re: DIY hermetic feedthroughs: Has anybody done this?

I have sealed copper and aluminum with glass but one MUST get the coefficient of thermal expansion or CTE's close for these metals; that requires a very special glass. Ditto for steel. I did all of this in the air (but certainly there are processes that require vacuum or argon - I never bothered wit...
by Dennis P Brown
Tue Aug 14, 2018 4:46 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: A theory of a possible method of fusion
Replies: 27
Views: 5942

Re: A theory of a possible method of fusion

OK; while the old negative pressure is still used on some ancient dial gauges or maybe AC units, might want to use positive readings; also, not inches. Maybe just convert to torr or pascal. That will mean more to others here.
by Dennis P Brown
Tue Aug 14, 2018 4:42 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Couple of questions
Replies: 34
Views: 2994

Re: Couple of questions

You will not create a plasma in air just applying a welder to those "electrodes". Also, a new picture would be helpful of the setup; also, maybe define what you are using for electrodes in the current setup.
by Dennis P Brown
Tue Aug 14, 2018 1:34 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: 277 volt power at home
Replies: 7
Views: 1999

Re: 277 volt power at home

Nice work and setup; hope the UV from the halogen's isn't too bad - the blue isn't exactly safe, either.

I haven't been reading all the details so, why are you doing this, again?
by Dennis P Brown
Tue Aug 14, 2018 1:25 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: A theory of a possible method of fusion
Replies: 27
Views: 5942

Re: A theory of a possible method of fusion

Rather difficult to make any suggestions what-so-ever when the only picture you show for the experiment is an open box held together with plastic straps. Making a plasma is trivial if one uses a vacuum (say 50 milli-torr) and a few hundred volts even at a a few milli-amps. If you are trying to creat...
by Dennis P Brown
Wed Aug 08, 2018 8:15 pm
Forum: Please Introduce Yourself
Topic: Hello From a High school in Indiana
Replies: 1
Views: 275

Re: Hello From a High school in Indiana

A couple of approaches might help - first, have enough people with assigned specific areas that they will study (using FAQ's here.) Be sure to match people with their interest and abilities. For example, someone that can use machine shop tools is ideal for making the fusor chamber - even if it is fr...
by Dennis P Brown
Wed Aug 08, 2018 8:03 pm
Forum: Images du Jour
Topic: Berryville hamfest booty
Replies: 6
Views: 357

Re: Berryville hamfest booty

Very impressive; especially since you just happen to have the electronics needed on hand to repair items like that meter!
by Dennis P Brown
Wed Aug 08, 2018 8:00 pm
Forum: New User Chat Area
Topic: Maintaining a vacuum in the absence of a pump.
Replies: 7
Views: 344

Re: Maintaining a vacuum in the absence of a pump.

Yes, it can be done but requires extremely good vacuum - not just no leaks but no "virtual" leaks. That said, to build a fusor without flowing deuterium is also very difficult (and not worth the effort for most.) If you can build a extremely leak tight system, clean it so there are no virtual leaks,...