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Re: The Beginnings of a Fusor Electrical System

... sketch) or because an xray tube with a filament is essentially a vacuum tube diode that will automatically only pass the AC potential, that ... come from the same connection. Why are there two? Possibly redundancy safety on the grounding of the HV source. Now, let's think about the primary ...
by Rex Allers
Sat Dec 31, 2016 10:30 am
 
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: The Beginnings of a Fusor Electrical System
Replies: 23
Views: 641

Re: First Fusion for Liam David - Neutron Club Application

... which allows the fusor to hold constant pressure with feedback from the vacuum gauge, and the ion sources that can be tuned for varying grid current ... the spellman supply to the fusor shell, adding this will improve system safety(as the ground through the AC lines can sometimes be a little iffy) ...
by Andrew Seltzman
Tue Dec 27, 2016 2:02 am
 
Forum: Images du Jour
Topic: First Fusion for Liam David - Neutron Club Application
Replies: 14
Views: 614

Re: Vacuum leak question

... However, it is quite safe with modest procedures centered around wearing gloves and avoiding contact. Ethanol is much better from a functional/safety standpoint. unfortunately, due to silly laws in the US, pure ethanol is difficult/impossible to come by. The average DIYer will find it impossible. ...
by prestonbarrows
Sat Nov 19, 2016 5:29 am
 
Forum: Vacuum Technology (& FAQs)
Topic: Vacuum leak question
Replies: 12
Views: 855

Re: HVSafety Circuit for comments

Even tripping the mains lines of the supply does not guarentee safety. At these voltages, the capacitance of random parts floating out in ... enough energy to kill. In the case of a fusor, the internal grid and vacuum chamber make up what amounts to a high voltage capacitor. I can attest ...
by prestonbarrows
Sat Nov 19, 2016 5:17 am
 
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: HVSafety Circuit for comments
Replies: 7
Views: 688

Re: HVSafety Circuit for comments

Even tripping the mains lines of the supply does not guarentee safety. At these voltages, the capacitance of random parts floating out in ... enough energy to kill. In the case of a fusor, the internal grid and vacuum chamber make up what amounts to a high voltage capacitor. I can attest ...
by David Kunkle
Mon Nov 07, 2016 1:49 am
 
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: HVSafety Circuit for comments
Replies: 7
Views: 688

Re: HVSafety Circuit for comments

... Even tripping the mains lines of the supply does not guarentee safety. At these voltages, the capacitance of random parts floating out in ... enough energy to kill. In the case of a fusor, the internal grid and vacuum chamber make up what amounts to a high voltage capacitor. Additionally, ...
by prestonbarrows
Sat Nov 05, 2016 12:49 am
 
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: HVSafety Circuit for comments
Replies: 7
Views: 688

Re: Completion of Demo Fusor

... chamber) should always have a true ground; then all components such as vacuum pumps, turbo/diffusion, gauges, and even the support stand should ... ground is valid as well as if neutral/hot have the correct polarity. Safety is your responsibility.
by Dennis P Brown
Sun Oct 09, 2016 8:16 pm
 
Forum: Images du Jour
Topic: Completion of Demo Fusor
Replies: 7
Views: 539

Re: Creating plasma with microwaves?

... stuff people have done and put on YouTube is mind boggling as regards safety! Search for "What microwave oven is capable. Generated plasma." or "Magnetron #6 - Irradiating A Vacuum Jar" or "Dangerous Magnetron from Microwave Oven 1".
by Sven Andersson
Fri Sep 16, 2016 3:36 pm
 
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Creating plasma with microwaves?
Replies: 10
Views: 850

Catagorzing Plasma in a Demo Fusor

... fusor. Grid construction and running of a 220 line for our two stage vacuum pump remain. Following the advice of Mythbusters Adam Savage -the ... a production number and we will maintain a log sheet. This will be part safety checklist and part data collection of time and perimeters. Jackson ...
by docmills
Thu Aug 25, 2016 12:17 am
 
Forum: New User Chat Area
Topic: Catagorzing Plasma in a Demo Fusor
Replies: 4
Views: 599

Re: New Fusor - Prototype Test

... ma), I get a runaway effect as the voltage drains along the metal/glass vacuum side surface and 'short's' out my plasma (the x-former doesn't seem ... a powerful fan to blow air onto the x-former. These upgrades add to safety and, hopefully, reliability. I am rather pleased by my central 'electrode'. ...
by Dennis P Brown
Thu Aug 18, 2016 5:53 pm
 
Forum: Fusor Construction & Operation (& FAQs)
Topic: New Fusor - Prototype Test
Replies: 2
Views: 758
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