:: circuit: http://www.edn-europe.com/cmsimages/0208/46f2.jpg

Don't forget R1 - 6 in that circuit should be high voltage rated,

I think for safety sake I'd be inclined to split R1 and 2 into two 120K=20
resistors in series.

Colin
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cdb, colin@btech-online.co.uk on 14/05/2011
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