Search found 45 matches

by Ed Meserve
Sun Mar 03, 2013 5:45 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Construction Progress of USM Fusion Group's New Rig
Replies: 1
Views: 1262

Construction Progress of USM Fusion Group's New Rig

<t>Hi all, I wanted to submit an update of our progress on our build of our second fusor rig, the "Mark II". <br/> <br/> Our first step is to get this new rig setup so that we can properly run it in demo mode while monitoring voltage, current, and pressure with a DAQ setup.<br/> <br/> We are using a...
by Ed Meserve
Sat Sep 01, 2012 12:34 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: A new topology for building a low-cost DIY HV power supply ... 30kV/80W for $25.
Replies: 39
Views: 22935

Re: A new topology for building a low-cost DIY HV power supply ... 30kV/80W for $25.

Chris, really nice work, and thank-you for sharing. After seeing what you've done here, we are going to use your method for our power supply.

Did you take the x-rays of the inverter yourself?

regards,
Ed
by Ed Meserve
Sun Jul 01, 2012 6:56 pm
Forum: Images du Jour
Topic: Archived - Demo Fusor at Maine Engineering Expo 2012
Replies: 3
Views: 2900

Re: Archived - Demo Fusor at Maine Engineering Expo 2012

Andrew, we would love to help out. Send me an email and we can coordinate a time to meet.
Regards,
Ed
by Ed Meserve
Thu Apr 05, 2012 11:15 am
Forum: Fusion --- Past, Present, and Future
Topic: Mark Suppes @ Lift conference
Replies: 1
Views: 2175

Mark Suppes @ Lift conference

<r>Here's a link to Mark Suppes talk at the Lift conference about his projects and open source science.<br/> <br/> <URL url="http://videos.liftconference.com/video/4816805/open-source-nuclear-fusion"><LINK_TEXT text="http://videos.liftconference.com/video/ ... ear-fusion">http://videos.liftconferenc...
by Ed Meserve
Mon Mar 05, 2012 12:17 am
Forum: Images du Jour
Topic: Archived - Demo Fusor at Maine Engineering Expo 2012
Replies: 3
Views: 2900

Archived - Demo Fusor at Maine Engineering Expo 2012

<t>Here's a couple of pictures of USM's demo fusor at the Engineering Expo. It's a lot of fun explaining what the setup is and what our next step will be. : )<br/> <br/> 1. Close up of the Plasma<br/> 2. Steve stops by to say hi and lend his GFI-Free NST<br/> 3. USM Engineering students wave the ban...
by Ed Meserve
Thu Mar 01, 2012 2:51 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Disabling Internal GFI in newer NST?
Replies: 3
Views: 2177

Re: Disabling Internal GFI in newer NST?

Thanks, John! I pinged the search, but I didn't pull this up. Tough to know what to ask when you don't know what to ask. : )
Ed
by Ed Meserve
Thu Mar 01, 2012 2:39 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Disabling Internal GFI in newer NST?
Replies: 3
Views: 2177

Disabling Internal GFI in newer NST?

<t>Hi All, I need to pick your brains. The Allanson "pow R pak" NST has an internal ground fault interrupt that starts to kick in when I raise up the voltage on the variac beyond 45 VAC. <br/> I been google-ing all over today and have had no luck finding any info on disabling GFIs. Before I dig into...
by Ed Meserve
Mon Feb 27, 2012 9:41 am
Forum: Images du Jour
Topic: Archived - USM Fusion Group: First Light
Replies: 5
Views: 2811

Re: USM Fusion Group: First Light

<t>Chris,<br/> You're right on, we were only able to get down to .1 torr (100 micron). The pump we are using is a Welch 1400. the base plate is a machined 1" thick aluminum, and the lines are flared copper gasline tubing. The valve is also gasline stock.<br/> All threads were sealed with 5 min. apox...
by Ed Meserve
Mon Feb 27, 2012 8:39 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Need Help Locating Capacitor Rated for Demo Fusor Usage
Replies: 4
Views: 1559

Re: Need Help Locating Capacitor Rated for Demo Fusor Usage

<t>Thanks, Carl! Our demo fusor "blinks" off as the NST goes through zero, and I was afraid that if I wasn't able to find a capacitor or set of capacitors that had a high enough C , that it wouldn't be able to carry enough power through the low of the AC wave to eliminate the blink. <br/> <br/> Ed</t>
by Ed Meserve
Sun Feb 26, 2012 6:42 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Need Help Locating Capacitor Rated for Demo Fusor Usage
Replies: 4
Views: 1559

Need Help Locating Capacitor Rated for Demo Fusor Usage

<t>Hi All,<br/> In the FAQs, the schematic for the demo fusor HV setup calls for a 2ufd , 10kV capacitor. I have been having a difficult time finding one. Does anyone have any suggestions where I might find one? <br/> <br/> Thanks in advance,<br/> Ed<br/> <br/> Edit: <br/> Or is this something that ...