"Chuck Harris" wrote in message
...
| NSM wrote:
| "Roy Hammond" wrote in message
| ...
| | I like the simple approach - neon, SCR and transformer. But what
| transformer
| | would be sufficient but also safe?
|
| A flyback transformer out of a junked TV. Run it off 6 VDC - it'll be
safer
| than 230. Look on the web for tesla coil designs.
|
| A car ignition coil has the advantage of being hermetically sealed.

They will give you a jolt though. Use a length of spark suppressor lead to
limit the current somewhat. One of my primary school teachers had the whole
class join hands then one kid touched the car's ground and another a spark
plug. Felt like someone shoved a broom handle through my arms.

N