Search found 31 matches

by Samuel Berman
Thu Aug 09, 2018 4:03 am
Forum: Announcements and Site Administration Topics
Topic: Sunnyvale Mini Meetup -- August 11
Replies: 5
Views: 992

Re: Sunnyvale Mini Meetup -- August 11

Update: I won't be going to the meetup because I broke my tailbone recently and sitting is painful. I might still make it to the flea market.
by Samuel Berman
Sat Jul 21, 2018 1:42 am
Forum: Announcements and Site Administration Topics
Topic: How did you find our Fusor forum?
Replies: 8
Views: 979

Re: How did you find our Fusor forum?

I found it by searching about fusors on google.
by Samuel Berman
Mon Jul 16, 2018 5:16 pm
Forum: Announcements and Site Administration Topics
Topic: Sunnyvale Mini Meetup -- August 11
Replies: 5
Views: 992

Re: Sunnyvale Mini Meetup -- August 11

Sounds good, I think I will be able to come.
by Samuel Berman
Mon Jun 11, 2018 4:35 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Does this look sufficient for a proof of concept fusor?
Replies: 7
Views: 3505

Re: Does this look sufficient for a proof of concept fusor?

Wood probably isn't the best material for vacuum work, but it might be ok for demo fusor pressures. Still, plastic would be better.
by Samuel Berman
Sun Jun 10, 2018 1:13 am
Forum: Images du Jour
Topic: Sharing hamfest booty images
Replies: 27
Views: 5780

Re: Sharing hamfest booty images

I was there too! I got an oscilloscope for $20.
by Samuel Berman
Wed Jun 06, 2018 1:13 am
Forum: New User Chat Area
Topic: Annealed copper gasket for hv feedthrough?
Replies: 1
Views: 718

Annealed copper gasket for hv feedthrough?

I know annealed copper cf gaskets are recommended for viewports, but should I use one for my feedthrough as well since it's made of ceramic?
by Samuel Berman
Mon Jun 04, 2018 12:58 pm
Forum: Images du Jour
Topic: Gold Plasma
Replies: 7
Views: 1457

Re: Gold Plasma

I can think of two other ways in which the color could have been created: 1. Some coins have copper on the inside and just a thin plating of the silver colored surface finish. When heated, the copper can alloy with the surface material and create a gold colored layer. 2. It could be an oxide layer, ...
by Samuel Berman
Tue May 29, 2018 5:02 pm
Forum: New User Chat Area
Topic: Bad Plasma
Replies: 6
Views: 962

Re: Bad Plasma

The reason I recommended a plastic plate is because it's easier than working with metal. Obviously metal is a better vacuum material, but it is harder to machine and feedthroughs must be insulated. It's much easier to drill a hole, put some wire through it, and seal with epoxy. Yes, running for long...
by Samuel Berman
Tue May 29, 2018 2:58 pm
Forum: New User Chat Area
Topic: Bad Plasma
Replies: 6
Views: 962

Re: Bad Plasma

I don't recommend using the lid at all. Instead, use a sheet of plastic and make your feedthroughs in that, then seal it with a rubber gasket (you can cut it from sheet rubber). That's what I did here: http://www.fusor.net/board/viewtopic.php?f=18&t=12250 The vacuum is still not amazing but it works...
by Samuel Berman
Tue May 29, 2018 4:36 am
Forum: New User Chat Area
Topic: Bad Plasma
Replies: 6
Views: 962

Re: Bad Plasma

Your pressure is definitely WAY too high. Probably because of some leak on the top of your jar (is it sealed with tape?). Also, what are you using for your high voltage supply?