At 10:48 PM 10/30/00 +0100, you wrote:
 I
>originally looked at a 4051 (CD4051BCN from Fairchild, to be exact.), but it
>seems it can only handle 0-6V..
>

If you check again, I think you will find that these chips will
handle +/-5v switchable via 0-5v levels.

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