Laser Pointer Forums - Discuss Laser Pointers | High Power Lasers

Just picked up this HV Generator on eBay for $4.20. (Hehe)

NEW DC 3V 6V TO 400KV 400000V Boost Step UP Power Module High Voltage Generator | eBay

Good old Chinese false advertising, 400kV. Lol.

I wasn't expecting much. But wow... this thing was a steal. Easily ~114kV.

Not shown in pics, but I got a maximum distance of around 1.5 inches (3.81 cm) of a nice established spark gap.

Now I'm no electrician but, from what I know DC spark gap voltages are around 30kv/cm, 3.81 * 30,000 = 114,300

Not sure what the practical uses for something like this would be but damn this thing is fun Also loud. It just uses a pulsed output to keep the spark gap going, with a run time of only about a minute. Sounds exactly like a taser(coincidence? I think not) It's very bright, made me want to wear sunglasses or something Definitely wouldn't want to get hit with something like this, I wore insulated gloves while testing, didn't really have to if I was careful but always rather safe than sorry. I would never use this thing without em' :yh:

Just used a couple of stripped breadboard wire for electrodes;



This has got to be one of the simplest circuits I've ever made, all I'm doing is connecting 9v to this thing. I've thrown a toggle switch and a button in with it for when I want specific timing and for when I want it constantly on.





Here it is in action:



I can't remember where but somewhere I heard lasers could be used to direct these spark gaps? If anyone knows anything about that lemme know