Search found 459 matches: +voltage +safety

Searched query: +voltage +safety

by Maciek Szymanski
Fri Nov 22, 2019 9:35 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Small demo fusor for educational purposes
Replies: 4
Views: 292

Small demo fusor for educational purposes

... so it can be easily explained to a layperson. To meet the safety requirements the HV power must be restricted in voltage and current. There is of course only low vacuum rotary vane pump, and the fusor will ...
by Rich Feldman
Wed Oct 16, 2019 3:26 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Non-Corrosive and/or Dielectric Liquid Cooling?
Replies: 16
Views: 1510

Re: Non-Corrosive and/or Dielectric Liquid Cooling?

... a BBQ tank so old it still has a POL valve. Glad to be with Dennis on a safety thing! Am reminded of one classic HV high bandwidth scope probe: the ... it needed to be refilled. https://www.eevblog.com/forum/testgear/high-voltage-oscilloscope-probes-make-or-buy/ Amateurs have used butane as a replacement ...
by David Vermilion
Tue Sep 17, 2019 12:33 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Brute forcing high voltages with two MOTs (not what you think)
Replies: 7
Views: 756

Brute forcing high voltages with two MOTs (not what you think)

... build a ~30Kv transformer with 0.03-0.04mA use a variac for control, a voltage divider to measure the voltage and string some cheap 20Kv diodes ... through issues/revisions so I waited. For anyone concerned with my safety, I DO OF COURSE plan on using NMN laminate paper for the insulation ...
by Trent Carter
Sat Aug 31, 2019 10:13 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: 1D Cathode with Neutron Run
Replies: 3
Views: 1141

1D Cathode with Neutron Run

... 2. 3D, 2D, and 1D Cathodes and the advantages in pressure, Neutrons, voltage and current based on geometry. Today I will share a Neutron generating ... welding put a brass brush on a dremel and brush the welds shiny. Wear safety goggles or you will lose an eye. Brass dremel brushes release brass ...
by Mark Rowley
Fri Aug 30, 2019 12:04 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Precipitator HV Supply Hacking
Replies: 20
Views: 3216

Re: Precipitator HV Supply Hacking

... try another “push to the limits test”, but this time with the original voltage control pot. As indicated by others, the added capacitance of the 8’ extension lead could’ve been the culprit. For safety, it’ll be a simple task to add an acrylic extension to the control. Mark ...
by Mark Rowley
Sun Aug 11, 2019 2:59 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Fusion Success with Precipitator Power Supply
Replies: 31
Views: 6205

Re: Fusion Success with Precipitator Power Supply

... post results once I get around to testing it. What I do agree on is the voltage regulation issue. Voltage output under load and no-load conditions ... can withstand the full potential of this type of supply PLUS a healthy safety margin. Although they are comparatively tough, I'm skeptical if they ...
by Liam David
Sat Jul 06, 2019 4:33 pm
Forum: Images du Jour
Topic: I'm back, and fusing
Replies: 5
Views: 3126

I'm back, and fusing

... and 5mA on the main grid. Unsurprisingly the potential rises with grid voltage. It's nothing particularly interesting, but perhaps it will serve ... to 20kV and then 30kV as I got the hang of it. As mentioned before the safety features of the Spellman supply can be tricky to handle, and the plasma ...
by Michael Bretti
Fri Jul 05, 2019 2:11 pm
Forum: Items For Sale
Topic: [REQUEST] 1 kV 10 A Diode and 10 kV Cable
Replies: 8
Views: 3761

Re: [REQUEST] 1 kV 10 A Diode and 10 kV Cable

... with a shunt resistor in series) is to protect the thyratron from large voltage reversals. Should a major spike occur, the diode is actually designed ... HV supply through a high wattage, low ohm (maybe 1 ohm) resistor for safety. This probably needs to be only 20kV, 1A rated in your case. Finally ...
by Robert Dwyer
Wed Jun 19, 2019 1:36 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Some Beefy Power Supplies
Replies: 2
Views: 3550

Some Beefy Power Supplies

... DC microwave source as well as these increadibly high currents at high voltage. I think the two extra ports will help accommidate two ions-guns. While ion sources, there design, and safety, are an interesting topic, I will leave any more discussion as to those sources ...
by Richard Hull
Wed May 29, 2019 4:57 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Columbus-I Pinch Tube Build
Replies: 49
Views: 20937

Re: Columbus-I Pinch Tube Build

... activation. Note!! With any pulsed-discharge system at elevated voltages the X-ray pulse will be fearsome!!! Remember!!! The voltage of the ... square law in this type of experiment as it is, as usual, all about safety from X-rays and not neutrons. Richard Hull