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how much heat does a farnsworth-hirsch fusor generate?

I have been looking at farnsworth-hirsch fusors and was wondering how much heat they generate.

Question by rabbitflinger    |  last reply


Making plasma in a vacuum chamber?

Im having trouble generating any kind of plasma and i guess not fully understanding this. Heres my setup: A metal pot with a Plexiglas lid as vacuum chamber. a pressure gauge on top A vacuum chamber A MOT as the power supply. Dont have equipment to measure high voltage but id guess around 2KVAC as thats what i understand is standard Two terminals about 2 inches apart inside of the chamber made from copper. one coming from the top, one from the bottom.  I hook up the terminals , hear the nice MOT buzz, but nothing happens inside of the chamber. The mot has been tested and does work.  Any clue or direction to point me in?

Question by GalaxyX    |  last reply


Cockcroft–Walton High Voltage Power Supply

Greetings! I have wanted to begin experimenting with high voltages recently and have already collected a series of projects that I would like to conduct. The only issue is that of my high voltage power supply. I have not the funds or resources to buy into a NST or MOT system and ended up looking for alternatives. I at first tried the ignition coil route that ended in failure and have now moved on. My question is, will a Cockcroft–Walton generator be able to run say, a tesla coil, jacob's ladder, or even a farnsworth fusor given that the necessary voltage is outputted from the multiplier.  Kind of between a rock and a hard place here, Thanks anyway!

Topic by SidC1    |  last reply


Extract heavy water?

I can't get hold of any heavy water so I want to try extract it from normal water, I only need a drop or two. I was gonna use electrolysis to separate the atoms and increase the concentration if heavy water till it gets to around 70% (min.) but how much of power do I need to pass though the wires to only separate H2O and leave the D2O? (Need the deuterium for a fusor I'm building)

Question by JunaidA44    |  last reply


A good deep vacuum pump? Answered

I'm looking for a vacuum pump for use with projects like the fusor included in make magazine, a laser tube, or a plasma ball.  It doesn't need to move huge amounts of air, but nothing below 1.5 lpm.  It also needs to have an ultimate vacuum of at most 25 microns.  I have been unable to locate any pumps which meet these standards, all of them have ultimate vacuums of around 100 to 75 microns or are completely unlisted.  Do any of you have some experience with these and some advice.  I don't need something for pumping out heating/cooling units daily, just a very deep vacuum a couple times a month.

Question by jj.inc    |  last reply