On 9 Mar 2014 23:39, "Jan Fredriksson" <[email protected]> wrote: > > I have a batch of voltage references ICs on the shelf, several thousand of > each type. They all have date codes of around 1983, ie 30 years old. It > would be great to have some drift data on them.
Since you have so many, it would be interesting if you built up some references, measured their stability, then shipped a random sample around the world - perhaps to two or three time-nuts on different continents. Then see if the transport actually has any effect on them. The discussions about the Fluke being shipped powered up made me think of this one. Of course shipping them powered up could be an additional interesting experiment, but as I wrote before, there are issues with that, although perhaps if the current consumption was low enough, the size of the battery needed would be incredibly small, and one could probably chose a type for which there is no strict regulations about carrying them. Dave _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
