Search found 17 matches

by scinut
Tue Sep 06, 2011 5:39 am
Forum: Fusion --- Past, Present, and Future
Topic: Taylor Wilson in the news again
Replies: 4
Views: 3010

Re: Taylor Wilson in the news again

Richard,
When you say "drag in more noobs", do you mean that to be a positive result? The term 'drag' throws me. Inspire?
by scinut
Sat Mar 26, 2011 7:59 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: NST, stacks, Spellman, Glassman etc.???
Replies: 3
Views: 1875

Re: NST, stacks, Spellman, Glassman etc.???

<t>You gave me quite a few options that sound like you have confidence in. Thank you! I think I have gotten the impression from many of the posts that using an NST, MOT, or flyback xfmr with a multiplier (especially with too many stages) is like wearing brown shoes with your black tuxedo, even thoug...
by scinut
Sat Mar 26, 2011 3:29 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: NST, stacks, Spellman, Glassman etc.???
Replies: 3
Views: 1875

Re: NST, stacks, Spellman, Glassman etc.???

<t>That makes sense. I don't like it, but that does explain what happens with some of the components. I have seen posts where some have tried to hook up cheaper, easier to obtain components in series or parallel to achieve their desired results. In fact, it was your reply post about connecting MOTs ...
by scinut
Sat Mar 26, 2011 1:56 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: NST, stacks, Spellman, Glassman etc.???
Replies: 3
Views: 1875

NST, stacks, Spellman, Glassman etc.???

<t> With very little of my experience with voltages above 1kV, this question may seem a bit naive. What is it about Spellman, Glassman, et al power supplies that makes them so much more expensive than what you could build yourself? I can see things such as sensors or detectors that may have a very e...
by scinut
Thu Mar 24, 2011 9:16 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Blaze Labs Resonant CW multiplier
Replies: 9
Views: 3763

Re: Blaze Labs Resonant CW multiplier

<t>Hello Richard-Is the Spellman PS you mention below a XRF160N160X3273 Xray unit, or something close? Is the factory output variable, or must you vary the input? If variable, could the output current be raised by lowering the voltage output, or are there limiting components to prevent that? (80kV @...
by scinut
Fri Mar 18, 2011 5:28 pm
Forum: Vacuum Technology (& FAQs)
Topic: Compatibility refererce for transducers, guages, and controllers???
Replies: 1
Views: 1627

Compatibility refererce for transducers, guages, and controllers???

Are there any cross reference internet sites showing which manufacturers transducers will work with which other manufacturers controllers, guages etc, or how to adapt/interface them?
by scinut
Mon Mar 14, 2011 10:55 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Choice of power supply and calculation of current (boy and girl in candy store!)
Replies: 11
Views: 3987

Re: Choice of power supply and calculation of current (boy and girl in candy store!)

Thanks Richard-With regard to feedback circuits for metering, are there any appreciable, or output operational differences between a feedback ckt. and a sampling ckt. for meters built into a factory power supply. Can one still have factory metering after reversing the polarity?
Jerry
by scinut
Sun Mar 13, 2011 9:54 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Gettin' along in a post 3He world
Replies: 2
Views: 1562

Re: Gettin' along in a post 3He world

<r>I just found this Ludlam page regarding replacing Remball BF3 tubes with He3 tubes? Anyone happen to know the cost for these?<br/> <br/> <URL url="http://www.ludlums.com/index.php?option=com_content&view=article&id=37:bf-3-tube-replacement&catid=32:support"><LINK_TEXT text="http://www...
by scinut
Sun Mar 13, 2011 9:23 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Gettin' along in a post 3He world
Replies: 2
Views: 1562

Re: Gettin' along in a post 3He world

Perhaps the members here who have 3 or more multiples of the 3 units you mention than they will ever use, would consider putting them on the amateur fusion market???
by scinut
Sun Mar 13, 2011 5:43 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Choice of power supply and calculation of current (boy and girl in candy store!)
Replies: 11
Views: 3987

Re: Choice of power supply and calculation of current (boy and girl in candy store!)

Hello Richard,
Regarding neg. voltage power supplies, can't one just modify a standard pos. supply by reworking the rectfiers and grounds?
Jerry