"Don Kelly" wrote in message
news:t9vPe.306958$5V4.277776@pd7tw3no...
none wrote in message ...
Hi all,

I'm trying to create a little experiment where I can take well water
that's heavy in minerals to bridge two wires. This works with AC,
however, I was hoping to use a DC source to make it portable. My
original test was to modify a flash light at the back end and put the
back end with small points on that outside that would bridge once
submersed in the water. If I take a piece of wire between the two point
the light comes on, however, putting it in the heavily mineraled water
does not.

Thanks,
Ken


probably too much resistance, at the low voltage of a flashlight, to allow
enough current to flow to actually make the bulb glow. Try it with a LED
flashlight or use a transistor power stage in between.

--

Don Kelly @shawcross.ca
remove the X to answer
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Thanks. You wouldn't happen to know of some sites that show examples of a
transistor power stage?

Thanks,
Ken