Cheap plasma globe
Myke, Thu Mar 22 2007, 05:34AMI made a plasma globe out of a disposable camera (well it dosn't put off streamers but it does glow when you touch the bulb). The "globe" is a 0A3 tube and when you touch it it glows around your fingers. I removed everything except for the inverter circuit. I took out the diode so the supply would be AC. the output is conecte to a 10K resistor so if the inverter does get shorted it doesn't get overloaded and die. the GND is conected to a short length of wire as an antena. I was wondering how a plasma globe could operate at such a low voltage and is there any harm done doing this?
Re: Cheap plasma globe
bill beaty, Thu Mar 22 2007, 06:24AM
Try hooking it to one end of a fluorescent tube, then wrap your hand around the tube.
Similar little inverters are commonly used to run CCFL fluorescent tubes, those little fluorescent lamps used by case-modders, also the backlights in LCD displays in laptop PCs. See:
bill beaty, Thu Mar 22 2007, 06:24AM
Try hooking it to one end of a fluorescent tube, then wrap your hand around the tube.
Similar little inverters are commonly used to run CCFL fluorescent tubes, those little fluorescent lamps used by case-modders, also the backlights in LCD displays in laptop PCs. See:
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