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The arcs up close on that one are hot like the ones from my NST's, but when he draws them out (to what looks to be 6 or 7 inches), they get blue and multiply...he even gets blue/purple coronas at about 5 inches or so. Looks like Force Lightening or something...very cool.
Is it possible to get the output of my NST's to behave like this? The arcs I get now are hot (like orange/white fire hot), but they can only be drawn out to about 3 or 4 inches and they stay orange/white hot till they die.
Registered Member #3108
Joined: Thu Aug 12 2010, 05:37PM
Location: Worthing, England
Posts: 72
As far as I know, there is no way you can get 'impressive' arcs from an NST. NST's can output max 15Kv, I believe kilovolt was driving his flyback around 60 to 80Kv.
I never managed to achieve what he did, I can either get purple streamers and (rarely) corona or hot fiery arcs. Im still working on it though!
If you want to get long loud sparks, you can build an marx generator for your NST.
Registered Member #2463
Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546
I looked at the video and saw the lead from the flyback coming from the rectifier which would make the arc DC. Nst's output AC.
Could the color be the electrons ions ripped off the the gasses returning and making the color characteristic of the return to the ground state.? The NST AC current is higher and because it is AC , whatever ions come off one way might be cancelled by the cloud of charges going back the other way. Also the plasma thermals are differrent at 60 Hz than at 60 kHz. as well as the lower current density.
Registered Member #1361
Joined: Thu Feb 28 2008, 10:57AM
Location: Cairns, Australia
Posts: 305
NST's supply a lot more current than flybacks, but a much lower voltage. If it wasn't for the largeish current, your NST sparks would only be about 1cm long. The current is what lets you drag them out. With flybacks, you get upwards of 30kV, but at low current. This means corona starts leaking out into the air as a result of higher voltage. If your NST could only output maybe 1 or 2mA at 15kV, you'd get corona when the electrodes where like 1cm apart.
Basically, the higher voltage of the flyback is what causes the corona. NST arcs are big, but only because of the current.
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Modifying output of an NST
