Search found 272 matches
- Sun Mar 15, 2015 8:00 pm
- Forum: Fusor Construction & Operation (& FAQs)
- Topic: Solderless Grid Construction
- Replies: 7
- Views: 9687
Re: Solderless Grid Construction
I donated my fusor to the University of Minnesota in November of 2012. Since then a group of Physics students, the Tesla group, has been working on the fusor and getting to know how to run the device. The most important development is that we managed to get our hands on a 2KW / 30 KV power supply. W...
- Tue Apr 10, 2012 8:57 pm
- Forum: Fusor Construction & Operation (& FAQs)
- Topic: Cutting Alumina
- Replies: 18
- Views: 15419
Re: Cutting Alumina
If you are making only one cut, you can go to tile store near you and they will probably cut it for you. To cut my feedthrough, I went to a Color Tile shop and they did it for nothing.
Tom
Tom
- Thu Jul 03, 2008 10:20 pm
- Forum: Vacuum Technology (& FAQs)
- Topic: turbo pump broken?
- Replies: 6
- Views: 3743
Re: turbo pump broken?
You might try talking to "Jersey" at A J Vacuum services. They rebuilt my turbo and controller.and are very helpful.
http://www.ajvs.com/
Tom
http://www.ajvs.com/
Tom
- Thu Jul 03, 2008 9:54 pm
- Forum: Interesting Links
- Topic: Another perpetual motion device?
- Replies: 17
- Views: 9799
- Mon Aug 14, 2006 10:50 pm
- Forum: Vacuum Technology (& FAQs)
- Topic: Turbo Pump Cleaning
- Replies: 5
- Views: 5290
Re: Turbo Pump Cleaning
For what it is worth, I am posting the cleaning instructiong for a TPU-40.
Also I have found the guys at A & J Vacuum Services helpful. Talk to Jersey. http://www.ajvs.com/.
Tom Dressel
Also I have found the guys at A & J Vacuum Services helpful. Talk to Jersey. http://www.ajvs.com/.
Tom Dressel
- Tue Jun 06, 2006 11:14 pm
- Forum: Vacuum Technology (& FAQs)
- Topic: Monster turbomolecular pumps (Welch 3102)
- Replies: 4
- Views: 3264
Re: Monster turbomolecular pumps (Welch 3102)
<t>When I bought my Hummer V, which is a sputtering rig , it came with a Pfeiffer Balsers TPU 040 turbo. It had a copper blank gasket in the 2.75 CF throat. The blank gasket had a 1/4 inch hole drilled in it to limit the through put.<br/> Before shelling out for a buterfly valve you might try a stat...
- Wed Apr 05, 2006 7:43 pm
- Forum: Neutrons, Radiation, and Detection (& FAQs)
- Topic: Radon detector for under $100.00
- Replies: 50
- Views: 16656
Re: Radon detector for under $100.00
<t>Yes, it was a good investment. <br/> <br/> A frend of mine who has a cabin on the north shore of Lake Superior, bought a series III detector and found Radon levels at 177 pCi/ liter in his basement.<br/> <br/> I can't believe the apathy amoung my collegues ( all physicians ) with respect to Radon...
- Sat Apr 01, 2006 11:51 pm
- Forum: Neutrons, Radiation, and Detection (& FAQs)
- Topic: Radon detector for under $100.00
- Replies: 50
- Views: 16656
Re: Radon detector for under $100.00
Well, 72 hrs of sucking under the slab has pulled the Radon level in the basement down from 38.5 to 0.9 pCi//liter. Thats a 97% Reduction.
Remediation works!
Tom Dressel
Remediation works!
Tom Dressel
- Wed Mar 29, 2006 10:10 pm
- Forum: Neutrons, Radiation, and Detection (& FAQs)
- Topic: Radon detector for under $100.00
- Replies: 50
- Views: 16656
Re: Radon detector for under $100.00
Twenty one years of sucking bad air. I don't spend much time in the basement now, but in the past I have spent hours down there watching TV and my wife now sits down there for hours watching DVD's. $1,425.00 is not inexpensive, but remember the radon detector was under $100.00. At least now the hous...
- Wed Mar 29, 2006 5:58 pm
- Forum: Neutrons, Radiation, and Detection (& FAQs)
- Topic: Radon detector for under $100.00
- Replies: 50
- Views: 16656
Re: Radon detector for under $100.00
<t>As of this writing I am having a sub slab suction system installed in my house to reduce the Radon levels. It consists of a 3" hole in the basement floor with ~5 gallons of dirt removed below the slab. The cavity is evacuated to the out side via a 3" PVC pipe and a fan. The goal is to establish a...