Search found 142 matches

by Liam David
Fri Jan 09, 2015 1:33 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: New HF Driver Idea
Replies: 37
Views: 18636

Re: New HF Driver Idea

Well, since I do not have an oscilloscope and am assuming the core is iron, what should I drive this with?
by Liam David
Fri Jan 09, 2015 2:53 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: New HF Driver Idea
Replies: 37
Views: 18636

Re: New HF Driver Idea

Yeah, I looked over that ZVS circuit but settled for a high powered H-bridge because I can pump much more voltage into it. I'll hopefully put it together this weekend. I'm driving this transformer with the H-bridge. http://i1186.photobucket.com/albums/z368/thedavidzoo/2014-09-04_20-38-34_121_zpse5ab...
by Liam David
Sun Jan 04, 2015 8:34 pm
Forum: Images du Jour
Topic: First Reactor Test
Replies: 13
Views: 5008

Re: First Reactor Test

Oh, that's why. You're using a "modern" high frequency NST, which is probably not center tapped like the old, tar-potted NSTs. In that case, probably perfectly fine to full wave rectify it. I have the same issue with the deuterium from Cambridge isotopes, so hopefully I'll be able to order through m...
by Liam David
Sun Jan 04, 2015 2:29 am
Forum: Images du Jour
Topic: First Reactor Test
Replies: 13
Views: 5008

Re: First Reactor Test

With that plasma, you're not below 75-50 microns. Better plasma is generally achieved by a lower pressure, and "star mode" occurs at below 15 microns. What type of pump are you using, and do you have a vacuum gauge? Also, you said that you full wave rectified the NST. Since NSTs are center tapped tr...
by Liam David
Mon Dec 29, 2014 4:16 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Attach NST Output to NST Input
Replies: 8
Views: 3808

Re: Attach NST Output to NST Input

Thank you Rich for your helpful explanation and the graph. If I were to increase the voltage, I would have to decrease the frequency in order to prevent saturating the core and drawing too many amps, right?
by Liam David
Mon Dec 29, 2014 1:33 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Attach NST Output to NST Input
Replies: 8
Views: 3808

Re: Attach NST Output to NST Input

So, what are those reasons?

But what if you removed the core and put it under oil? Wouldn't that provide adequate insulation?
by Liam David
Sun Dec 28, 2014 7:22 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Attach NST Output to NST Input
Replies: 8
Views: 3808

Attach NST Output to NST Input

This is probably not a good idea...
Let's say I were to hook up the output of a 3kV NST to the primary of a 15kV NST core submerged in oil. Would this produce really high voltage, or do something else unintended?
by Liam David
Wed Dec 24, 2014 1:47 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: New HF Driver Idea
Replies: 37
Views: 18636

Re: New HF Driver Idea

If the CCFL transformers won't work, then I will use this full bridge gate driver: http://www.mouser.com/Search/ProductDet ... 453DSTRPBF. So, would the CCFL transformers I linked to work?
by Liam David
Tue Dec 23, 2014 1:52 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: New HF Driver Idea
Replies: 37
Views: 18636

Re: New HF Driver Idea

Well, I posted on the OneTesla forums about the transformer about a month ago and the only reply I got was one recommending posting on 4hv.org. Did the founders/owners of OneTesla buy it? I found a website that gives away free samples of CCFL transformers. http://www.coilcraft.com/ccfl.cfm. Since th...
by Liam David
Fri Dec 19, 2014 12:15 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Homemade Feedthrough
Replies: 20
Views: 12206

Re: Homemade Feedthrough

It's been a long time since I posted. School has left me with almost no spare time. The feedthrough has only been tested to 15 or so kV with a NST. I'm working on a new HF x-ray transformer, so that will be the final test for the feedthrough. The internal conductor is just a (0.1" diameter?) aluminu...