Search found 275 matches

by Dan Knapp
Sun Mar 22, 2020 11:58 am
Forum: Vacuum Technology (& FAQs)
Topic: March issue of the bell jar - HV supply article
Replies: 5
Views: 1467

Re: March issue of the bell jar - HV supply article

Thanks for the link; this is an interesting article. My post is prompted by the section on microwave experiments. First, I think the author should have emphasized a bit more that operating a magnetron without shielding can be dangerous. I also wanted to point out that microwave plasma experiments ca...
by Dan Knapp
Tue Mar 17, 2020 2:52 am
Forum: Vacuum Technology (& FAQs)
Topic: Beware of shipping costs!!
Replies: 8
Views: 1824

Re: Beware of shipping costs!!

LDS says on their web page that they have free ground shipping for orders over $75. If they charged you for a $100 order, you should call them on it. They formerly offered free shipping to a university address, but changed it a while back to the same $75 minimum order. I’m not happy with their shipp...
by Dan Knapp
Sat Mar 14, 2020 9:58 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Magnetically assisted ionization
Replies: 14
Views: 3045

Re: Magnetically assisted ionization

Hotta's group in Japan did considerable study of this subject in a cylindrical fusor and reported their results at the US-Japan IEC Workshop in College Park, MD, in 2012. Unfortunately, the web site where the presentations at that meeting were posted has since been taken down. They used mutiple coil...
by Dan Knapp
Tue Mar 03, 2020 11:14 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Universal Voltronics XRC-60-60N Analog Control
Replies: 0
Views: 1257

Universal Voltronics XRC-60-60N Analog Control

A batch of the Universal Voltronics XRC-60-60N -60kV, 60mA power supplies appeared on the used market several years ago when Panalytical switched to using Spellmann supplies in their x-ray equipment and sold off their spares. Being negative polarity supplies with voltage and current suitable for fus...
by Dan Knapp
Fri Feb 28, 2020 12:17 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor V construction - the process long running
Replies: 48
Views: 17817

Re: Fusor V construction - the process long running

Richard, LDS has your needed adapter for $84.00.
by Dan Knapp
Mon Feb 24, 2020 11:17 pm
Forum: Items For Sale
Topic: Deuterium lecture bottles on ebay
Replies: 12
Views: 3946

Re: Deuterium lecture bottles on ebay

The last time I bought deuterium (about two years ago), Cambridge Isotope Laboratories had the best price. They currently list their lowest purity deuterium (98.8%) at $314 for 50 liters. They also offer a 25 liter size for $167. This does not include the shipping charge.
by Dan Knapp
Sat Feb 15, 2020 12:38 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: University on Maryland amateur fusion effort (Cyclotron)
Replies: 7
Views: 2516

Re: University on Maryland amateur fusion effort (Cyclotron)

When I click on the link, it takes me to the University of Maryland Authentication Services and asks for a U.Md. password.
by Dan Knapp
Thu Jan 23, 2020 3:23 am
Forum: Announcements and Site Administration Topics
Topic: Annual Fundraiser: Let's Try This Again
Replies: 6
Views: 2668

Re: Annual Fundraiser: Let's Try This Again

Button on front page of fusor.net works.