[volt-nuts] Batch of old reference zeners

Dr. David Kirkby drkirkby at gmail.com
Mon Mar 10 04:57:52 EDT 2014


On 9 Mar 2014 23:39, "Jan Fredriksson" <jan at 41hz.com> 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


More information about the volt-nuts mailing list