Search found 322 matches

by Rex Allers
Thu Dec 24, 2015 10:25 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Deuterium storage
Replies: 13
Views: 8338

Re: Deuterium storage

Interesting stuff on the HydroStik. I hadn't seen them before. Seems they are made by Horizon Fuel Cell Technologies -- http://www.horizonfuelcell.com/ I gather the original was HydroStik and now there is HydroStik Pro. The charging unit, Hydrofill, also has a Pro version. The spec for HydroStik say...
by Rex Allers
Wed Sep 30, 2015 6:30 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: X-ray transformer modifications
Replies: 22
Views: 12666

Re: X-ray transformer modifications

Richard said, "The plus/minus change should be simple and involve the rectifiers and their connections only." In my post, I was trying to point out that the original design was already a DUAL full wave rectifier, BOTH plus and minus relative to ground. My point was ignore the plus output (or save it...
by Rex Allers
Wed Sep 30, 2015 2:46 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: X-ray transformer modifications
Replies: 22
Views: 12666

Re: X-ray transformer modifications

I was waiting for someone with more real experience to pipe up, but it hasn't happened so I'll add what I'm thinking. The original design is basically two ~63 KV supplies relative to ground. One provides + HV and the other -HV. The xray tube is placed between them so it sees ~125 KV. The two ends of...
by Rex Allers
Fri Jul 17, 2015 11:19 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Board Mounted LiI(Eu) scintillators - repost in neutron detection
Replies: 26
Views: 22838

Re: Board Mounted LiI(Eu) scintillators - repost in neutron

It doesn't change anything in the discussion, but I'm pretty sure ebay seller(s) "rockcodfred" and "kephis" is the same person. Not sure why the newer identity.
by Rex Allers
Thu Jul 16, 2015 12:45 pm
Forum: Images du Jour
Topic: Hello again after a long time... with pretty graphs.
Replies: 4
Views: 2632

Re: Hello again after a long time... with pretty graphs.

Wow. Thanks for sharing your great work.
by Rex Allers
Thu Jul 16, 2015 6:05 am
Forum: Images du Jour
Topic: Hello again after a long time... with pretty graphs.
Replies: 4
Views: 2632

Re: Hello again after a long time... with pretty graphs.

Nice post, Ben. I'm mostly a lurker here. When was your fusion achieved (~2009, 10)? Very nice to see a (young, I assume) fusor constructor go on to joining a team for serious scientific research. Congratulations on being accepted into that realm. On your post, the 3D gif graph with the "shadows" on...
by Rex Allers
Mon Jul 13, 2015 7:02 am
Forum: Images du Jour
Topic: Calling Frank Sanns - Network Switch
Replies: 2
Views: 1575

Re: Calling Frank Sanns - Network Switch

Many of the young people have no idea what it took to connect computers back in the day.
Some (not so young) do.

Image
by Rex Allers
Tue Jun 30, 2015 9:03 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Trouble Obtaining Deuterium
Replies: 10
Views: 6012

Re: Trouble Obtaining Deuterium

Well, that's an ugly development. I've been slowly accumulating parts to build a fusor, but I am getting closer. I don't like it, but I guess it isn't surprising that the govt is getting into the middle of this too. I was leaning toward electrolysis anyway but this thread just caused me to order 200...
by Rex Allers
Mon May 25, 2015 8:21 pm
Forum: Vacuum Technology (& FAQs)
Topic: Fixing an Analog Thermocouple Gauge
Replies: 11
Views: 7865

Re: Fixing an Analog Thermocouple Gauge

Charles, I agree with Bruce that you may have a vacuum issue, rather than a meter issue. Everything you have posted about the meter and tube sounds good. I have a Varian 0531 tube here, but no meter, and I have never tried to use it. Your post caused me to try to understand how the meter should work...
by Rex Allers
Sun May 24, 2015 8:29 am
Forum: Images du Jour
Topic: First Plasma Achieved
Replies: 5
Views: 3103

Re: First Plasma Achieved

John Futter wrote: I would think your vacuum in the chamber is around 0.1 millibar aka 2 x 10 to minus 1 torr.
John, Isn't 0.1 mbar = 0.075 Torr? Not critical to the general discussion, but what pressure did you actually think you were seeing in the plasma?