Lizard Blizzard wrote in
:

Bill Janssen wrote:

Alan Horowitz wrote:


any of these new-fangled battery chemistries such that, buying an
average one off the shelf, it has a voltage that's within 1% of it's
nominal?


Check the spec.'s on coin size Mercury cells. As I remember a new
one has a well defined voltage.

Mercury cells cannot be sold because of the mercury in them. So the
battery could not be purchased, as the OP requested.



Good luck.
Bill K7NOM




Perhaps new silver oxide cells would suffice.
1.55V IIRC.
Better to use a band-gap reference diode,they come in 100 PPM accuracies.

--
Jim Yanik,NRA member
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