On Mon, 22 Sep 2003 22:56:02 +0100, Chris Wilson
wrote:

You can buy some sort of neon indicators from the electric
fence makers, but they are about 20 quid each...

Neon and a capacitor (maybe 0.22uF) in parallel, fed from a bridge
rectifier. Cost a quid or so.

--
Smert' spamionam