On Wed, 09 Mar 2011 16:31 +0200, "N. T." wrote:

> If "leads were picking up a DC offset, probably due to galvanic
> action", the right approach, in my opinion, would be to eliminate
> "picking up a DC offset".

I agree with that, too. If there is an unwanted signal, DC in this case,
in your circuit, get rid of it as soon as possible. If not before the
first stage, then right after.

Cheerful regards,

Bob

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