Search found 1295 matches

by Frank Sanns
Mon Feb 01, 2021 11:09 pm
Forum: Items For Sale
Topic: Rich Feldman's store. Today's feature: beryllium sheet
Replies: 16
Views: 4071

Re: Rich Feldman's store. Today's feature: beryllium sheet

EDM under oil is the only reasonable way to work with beryllium. Grinding or sawing, even wet sawing is just dangerous. You do realize that there are always fines with the coarse. Doing it outside is not a guarantee of safety either. With the wind at your back or side, you will have vortices that wi...
by Frank Sanns
Sat Jan 23, 2021 11:45 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: A 50kV supply with 33mA drive ability
Replies: 19
Views: 2494

Re: A 50kV supply with 33mA drive ability

Finn, My wire winder was the two handed one. Early on I did use my father's small lathe but it was too powerful and I did not want to have the wire grab and pull my hand in or slice through it. The lathe was only The biggest project I every did by hand was around 4 miles of 22 gauge magnet wire on a...
by Frank Sanns
Sat Jan 23, 2021 2:00 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: A 50kV supply with 33mA drive ability
Replies: 19
Views: 2494

Re: A 50kV supply with 33mA drive ability

Winding fine wire on coils is challenging. Too loose and they slide off. Too tight and they pull to the side as the layers increase and they slide off. A solution that I have used with nearly 100% success is to spray the windings with some clear fast drying urethane or lacquer. Just enough to make i...
by Frank Sanns
Thu Jan 07, 2021 4:18 am
Forum: Advanced Technical Discussion Area
Topic: RGA to Analyze Ion Beam Composition
Replies: 8
Views: 1859

Re: RGA to Analyze Ion Beam Composition

I can only say that plasma travels a long way in a vacuum. Even locating a device off axis, far away, or down the vacuum line does not guarantee that high voltage cannot get to your sensor. I am on my third thermocouple vacuum gauge because of it. Some people have the same problem that I have had wh...
by Frank Sanns
Sun Jan 03, 2021 4:08 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor arcing problems
Replies: 6
Views: 628

Re: Fusor arcing problems

More information would be helpful. As the pressure goes down to your 15 micron reading, what happens to the current and voltage? Are there many x rays coming out of your window? If your voltage is really 50kv then x rays should have been streaming out as you got down to that pressure. If they were n...
by Frank Sanns
Sun Jan 03, 2021 3:13 am
Forum: Announcements and Site Administration Topics
Topic: Not a covid post! Get ready for the vacuum
Replies: 18
Views: 2135

Re: Not a covid post! Get ready for the vacuum

Yes, a concoction for sure! Frank n Stein. lol This device is a wiped film molecular still. It can separate very small, thermally sensitive components from a stream. This one has a 6 inch bore with teflon wipers that you cannot see. The very thin film of liquid flashes off the fraction that you want...
by Frank Sanns
Sat Jan 02, 2021 5:12 pm
Forum: Announcements and Site Administration Topics
Topic: Not a covid post! Get ready for the vacuum
Replies: 18
Views: 2135

Re: Not a covid post! Get ready for the vacuum

During the enduring lockdowns here in PA, I have used the opportunity to work on another project that should hit the market in the next several weeks. Here is a photo of me and a piece of equipment that I configured and had built. It can run down to around 50 microns but no plasma here. It has super...
by Frank Sanns
Mon Dec 28, 2020 12:04 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: NASA Lattice Fusion -Relocated Thread FS
Replies: 5
Views: 1262

Re: NASA Lattice Fusion -Relocated Thread FS

I have a hard time believing that this work was not done decades ago at neutron sources around the world. Clearly this would have been investigated at LANSCE or such.
by Frank Sanns
Sun Dec 27, 2020 10:59 pm
Forum: Fusion --- Past, Present, and Future
Topic: Farnsworth Questions
Replies: 33
Views: 10731

Re: Farnsworth Questions

Joe has indeed posted those. There are many though, like this post that, that are originals that come from the Farnsworth family and are NOT part of the UT archive. Thanks Jonathan Moulton!
by Frank Sanns
Sun Dec 27, 2020 9:33 pm
Forum: Fusion --- Past, Present, and Future
Topic: Farnsworth Questions
Replies: 33
Views: 10731

Re: Farnsworth Questions

Nicolas Here is an excerpt of the actual Philo Farnsworth vision of use of fusion energy. These are the dreams that I read and was impressed with. A vision for all. This is only the first part. There is much more but it is in his words and the part relevant to this thread. I have the permission from...