Search found 237 matches

by richnormand
Sat Nov 15, 2014 3:49 am
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: HENDO POLYWELL
Replies: 11
Views: 6296

Re: HENDO POLYWELL

Liked the video you referred to Preston. Reminded me of the old PSSC physics program videos of the early 70s in an era when science was "good" for our future and with an experimental approach. Not the case these days from what I gather from my kids experience with math, chemistry, physics teachers t...
by richnormand
Wed Sep 03, 2014 2:00 am
Forum: Vacuum Technology (& FAQs)
Topic: Silicosis From Boiling Diff. Oil and Mech. Pump
Replies: 9
Views: 2959

Re: Silicosis From Boiling Diff. Oil and Mech. Pump

Early this summer I had two professors from George Washington University come over to observe my fusor setup. One of them mentioned that silicosis from my mechanical pump exhaust is an issue. Ever sense then, my dad has mentioned repeatedly that I need to do something about this. I haven't yet beca...
by richnormand
Fri Jul 04, 2014 12:37 am
Forum: Images du Jour
Topic: Vacuum system parts collection and my development plan.
Replies: 7
Views: 3689

Re: Vacuum system parts collection and my development plan.

Hi br2600, (((( While I had the diodes out I tested them, using a techinque I used for testing high voltage diodes out of transmitters. HV diodes typically have a drop of 6-50 volts, depending on their rating, so an ordinary multimeter will show them as being "open". )))) You got me intrigued here. ...
by richnormand
Thu May 22, 2014 7:46 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Gas cylinder thermal expansion
Replies: 11
Views: 4598

Re: Gas cylinder thermal expansion

Assuming the illustration is in the proper direction I would use a felt strip on the inside of the top and bottom clamp. I would think that is quite solid and would allow expansion/contraction of the whole assembly and the cylinder. For extra measure a simple stainless steel adjustable (aka aircraft...
by richnormand
Fri Feb 07, 2014 4:12 am
Forum: Vacuum Technology (& FAQs)
Topic: Roughing Pump Cooling
Replies: 14
Views: 4455

Re: Roughing Pump Cooling

JB Weld on two joints with the turbo pump here. It was meant to be temporary fix about one year ago but they are both still there. Base pressure around or better than 10^-7 torr so it cant be outgassing that much. Make sure the mix is homogeneous and the surface well cleaned with some haze for grip....
by richnormand
Fri Jan 31, 2014 9:32 pm
Forum: Vacuum Technology (& FAQs)
Topic: Roughing Pump Cooling
Replies: 14
Views: 4455

Re: Roughing Pump Cooling

I don't know if your model is direct drive vs belt drive (slower) My Leybold trivac D16A direct drive vane two stage pump with a 1Hp motor will get in the "too hot to touch long" with fingertips. It is its normal operating temperature but it takes about an hour to get there. In the troubleshooting s...
by richnormand
Wed Jan 15, 2014 8:26 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Pulsotron-2 new device working
Replies: 30
Views: 13141

Re: Pulsotron-2 new device working

"the blue lines are a NEW KIND OF RADIATION, I name it "Segura ray"" Are you talking of the straight almost vertical blue lines in the pictures? If so. Have you ruled out CCD or CMOS reading effects? These were quite common in the old BW CCDs when the photo-site was filled via the nonlinearity of th...
by richnormand
Wed Jan 08, 2014 8:51 pm
Forum: Files
Topic: Keithley Model 616 Digital Electrometer
Replies: 1
Views: 4060

Re: Keithley Model 616 Digital Electrometer

Thanks for uploading this John.
My unit is working fine but it is nice to know I have the info should it be ever needed.
A CD with the info is now next to it.
by richnormand
Mon Dec 02, 2013 1:48 am
Forum: Vacuum Technology (& FAQs)
Topic: Alcatel mechanical pump
Replies: 4
Views: 1753

Re: Alcatel mechanical pump

Had a similar experience with my Leybold Trivac rotary vane pump. Motor was not wired and did not seem to match the instruction manual. It may have been changed from the original, somewhere in its life. Contacted the motor manufacturer and got the electrical wiring diagram BUT just to make sure I re...
by richnormand
Fri Aug 30, 2013 1:59 am
Forum: Announcements and Site Administration Topics
Topic: Fusion review board
Replies: 6
Views: 3344

Re: Fusion review board

Suggestion. The scientific community has been somewhat successful with the peer review process. In submitting the evidence (paper, experiment, whatever) the receiving "editor" (Richard for example here) gets the feedback from (anonymous to the author by in large) referees chosen for their contributi...