Power supply grounding

[Caloroso, Michael E]

>    Unfortunately, there did not seem to be any concensus as to 
>    the correct way of doing this. 
> 
The technique I've read about and use is to couple chassis ground and earth ground with a 10 ohm 1W resistor paralleled with a 0.1uf cap.  The resistor directs any ground differentials to earth ground (and not through you) while the cap shunts RF.

I cannot for the life of me find the source of that info, but it made sense to me.  I've used it without a problem in test equipment at work and in a couple of DIY projects.

MC
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Opinions (and mistakes) expressed herein are my own and not those of my employer.