Search found 90 matches

by John Taylor
Tue Feb 28, 2012 2:42 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: 455 Watt xrt power for fusion
Replies: 19
Views: 5288

Re: 455 Watt xrt power for fusion

Are you saying transformers produce xrays? By what method??? And if so, why would they peak at a particular voltage? Am I missing something here or do we need to just stop this thread right now before too much bullshit gets spread?
by John Taylor
Tue Feb 28, 2012 10:26 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: 455 Watt xrt power for fusion
Replies: 19
Views: 5288

Re: 455 Watt xrt power for fusion

<t>Not wanting to continue to beat an obviously dead horse here, but I'm confused about the varying brightness of a NE2 lamp mentioned in the proposed optically coupled protection circuit. <br/> <br/> From my small knowledge of their operation and characteristics, in a series circuit with a current ...
by John Taylor
Tue Feb 28, 2012 10:02 am
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Interesting idea for a fusion power plant
Replies: 10
Views: 4448

Re: Interesting idea for a fusion power plant

<t>To Mr Absar:<br/> Concerning your posting "You propose an interesting idea. I have been looking into a similar idea for a long time, and I think I've come up with a feasible fusion environment. I host my project at..."<br/> <br/> This was not a proposal by me or anyone on this forum, it was in a ...
by John Taylor
Tue Feb 14, 2012 6:11 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Simple GM probe construction, end-window tube
Replies: 12
Views: 4027

Re: Simple GM probe construction, end-window tube

<t>Brian,<br/> <br/> I too think that the issue of voltage on BNCs has been resolved (and I have learned a lot about voltage ratings). Thanks to everyone for their input.<br/> <br/> As to the appearance of the probe housing, it looks pretty good to me in copper, but that will corrode and not be as a...
by John Taylor
Tue Feb 14, 2012 4:04 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Simple GM probe construction, end-window tube
Replies: 12
Views: 4027

Re: Simple GM probe construction, end-window tube

<t>Brian, <br/> <br/> I am not sure what brand connector you will use, but all of the specs I can find list a maximum voltage rating of 500 volts for BNCs, but Steven must have some rated for higher voltage. <br/> <br/> The Amphenol BNC conectors I typically spec for my work are rated at 500 volts A...
by John Taylor
Tue Feb 14, 2012 3:52 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Simple GM probe construction, end-window tube
Replies: 12
Views: 4027

Re: Simple GM probe construction, end-window tube

<t>Brian,<br/> <br/> I thought that particular tube was somewhere around 700-750 volts. It was used in a older military RADIAC meters I believe. <br/> <br/> Anyway, best of luck with building your hi-voltage circuit. As with any instrumentation, I would try to keep the coax as short as possible and ...
by John Taylor
Tue Feb 14, 2012 2:08 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: XRF X-ray transformer
Replies: 11
Views: 4724

Re: XRF X-ray transformer

<t>Thanks for sharing that with us, Richard. I love how solidly built that case and the mounts are. Its nice that it includes the oil circulating pumps, although most of us probably wouldn't use enough power to significantly heat up that volume of oil.<br/> <br/> Are you planning on modifying it for...
by John Taylor
Tue Feb 14, 2012 1:59 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Simple GM probe construction, end-window tube
Replies: 12
Views: 4027

Re: Simple GM probe construction, end-window tube

<t>Brian, you probably already know this, but a regular BNC connector may not handle the high voltage required for that tube. BNC connectors look very similar to MHV connectors, but typically are rated for around 500 volts whereas the MHV may go up to around 5000 volts (these values are from my memo...
by John Taylor
Mon Jan 30, 2012 2:59 pm
Forum: Images du Jour
Topic: Archived - Science Fair Results
Replies: 7
Views: 3379

Re: Science Fair Results

From what I can see in the photo it looks like a really good presentation with lots of data and well organized! Congrats on the local competition and good luck at the county science fair! Good work!!!