Search found 93 matches

by Dave Xanatos
Tue Oct 18, 2016 10:48 pm
Forum: Images du Jour
Topic: Archived - Dave Xanatos - Fusor Foundations
Replies: 40
Views: 16347

Re: Archived - Dave Xanatos - Fusor Foundations

LOL! I love your description of electron flow in your 1T... and your HUP references! I needed a laugh today. 1T is an amazingly large value, I believe I've seen insulators with less resistance.

Dave
by Dave Xanatos
Mon Oct 17, 2016 3:23 pm
Forum: Images du Jour
Topic: Archived - Dave Xanatos - Fusor Foundations
Replies: 40
Views: 16347

Re: Archived - Dave Xanatos - Fusor Foundations

Hi Richard - thanks for the info - I would have thought more than 10 Watts, the thing is almost as big as a beer bottle! As for what look like scratches - that is actually reflection - see the photos below with different lighting. This unit was in its original foam packaging and labels - it's pristi...
by Dave Xanatos
Mon Oct 17, 2016 1:02 am
Forum: Images du Jour
Topic: Archived - Dave Xanatos - Fusor Foundations
Replies: 40
Views: 16347

Re: Archived - Dave Xanatos - Fusor Foundations

Last MIT Flea Market of 2016... Picked up a few goodies, including this fat 14M resistor. Any idea what the wattage on this puppy might be? It measures 7.5" overall length by 2" diameter, and is hollow. Looks really nice, measures 13.40M. Should find a home in some future HV project! Got it for $1.0...
by Dave Xanatos
Thu Oct 13, 2016 3:25 am
Forum: Images du Jour
Topic: Archived - Dave Xanatos - Fusor Foundations
Replies: 40
Views: 16347

Re: Archived - Dave Xanatos - Fusor Foundations

Very good info Richard, thanks. The pictured resistor setup is indeed just a Q&D, running near the top end of the unit's maximum rated output. Honestly, these things are from Hong Kong and only $8.00 each, and I just wanted to run them for an hour or so because I fully expected them to crap out! But...
by Dave Xanatos
Wed Oct 12, 2016 2:17 am
Forum: Images du Jour
Topic: Archived - Dave Xanatos - Fusor Foundations
Replies: 40
Views: 16347

Re: Archived - Dave Xanatos - Fusor Foundations

Hi Rich, I bet you're right! This was just a test setup for a burn-in. Are you suggesting that the measurements may be inaccurate? I've not usually had issues with mA level measurements with standard resistors below 2kV. I am very aware of the resistor issues/requirements when measuring my fusor gri...
by Dave Xanatos
Tue Oct 11, 2016 11:33 pm
Forum: Images du Jour
Topic: Archived - Dave Xanatos - Fusor Foundations
Replies: 40
Views: 16347

Re: Archived - Dave Xanatos - Fusor Foundations

Neutron Detector build underway. Using Richard Hull's Last Two PMTs! Burn-in testing of a few different HV Supplies for the PMTs. These guys run up to around 1800Vdc, not bad for $8 eBay Hong Kong specials. Pictures show voltage running around 1500Vdc through a 10M/1k voltage divider. I'll be using ...
by Dave Xanatos
Tue Oct 04, 2016 10:52 pm
Forum: Images du Jour
Topic: Archived - Dave Xanatos - Fusor Foundations
Replies: 40
Views: 16347

Re: Archived - Dave Xanatos - Fusor Foundations

Finally had the time to get the High Voltage Guard (formerly a KitchenAid Polycarbonate Store Display) installed, and then the High Voltage Divider for the Monitor... and of course, the Monitor Panel. I have been unhappy with the video monitor due to the poor quality of the cheap camera I used which...
by Dave Xanatos
Tue Jun 21, 2016 9:42 pm
Forum: Images du Jour
Topic: Archived - Dave Xanatos - Fusor Foundations
Replies: 40
Views: 16347

Re: Archived - Dave Xanatos - Fusor Foundations

Just a few revisions to the Deuterium Generator - the small inner diameter of the crossover dropdown tubes made it so that the PEM cell had to generate too much pressure to displace the vacuum oil. So I put in larger (0.25" OD x .005" wall thickness) stainless steel tubes. The gas line tubes are fin...
by Dave Xanatos
Tue Jun 21, 2016 1:19 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: PEM fuel cell deuterium generator
Replies: 32
Views: 30953

Re: PEM fuel cell deuterium generator

Just a quick design revision: note the increased diameter of the two crossover droptubes. This is to prevent too high of a pressure developing within the PEM Cell trying to push the vacuum oil through the small diameter tubing. The gas flow diameters are fine as they should never conduct oil. Also n...
by Dave Xanatos
Sun Jun 05, 2016 1:05 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: FICS II Planning and construction
Replies: 64
Views: 39244

Re: FICS II Planning and construction

Thanks for that. The possibility of a self-sustaining fusor is immensely interesting to me. Looking forward to updates greatly!

Dave