hank
Flashlight Enthusiast
This sounds buildable; anyone have more details?
http://news.sciencemag.org/sciencenow/2012/04/plasma-flashlight-zaps-bacteria.html
"... a DC booster to step up the voltage to 10 kilovolts. One output of the booster is wired to the device's shell—or "grounded," in technical speak—while the other goes to an array of 12 fine, stainless steel needles that create a rapidly pulsing electrical discharge. The circuit has several "ballast" resistors that limit the discharge's current so that the flashlight is safe to touch...."
http://news.sciencemag.org/sciencenow/2012/04/plasma-flashlight-zaps-bacteria.html
"... a DC booster to step up the voltage to 10 kilovolts. One output of the booster is wired to the device's shell—or "grounded," in technical speak—while the other goes to an array of 12 fine, stainless steel needles that create a rapidly pulsing electrical discharge. The circuit has several "ballast" resistors that limit the discharge's current so that the flashlight is safe to touch...."