Hi
> On Sep 27, 2020, at 11:59 AM, Jeremy Nichols <[email protected]> wrote: > >> >> <snip> >> >>> We used three thermistors and averaged them. >> >> I assume they were spread around in case one side of the package was >> warmer than the other. >> > >> Could one do an analog “average” by using a set of, for example, four > ‘identical’ (there’s a risky word!) They get closer the more you pay for them ….. :) On an OCXO, you have a target range of temperatures. It may be as narrow as 10C it could be 30C. “Matching” outside that range is not going to help you any. Indeed back in the “good old days” people sat and sorted thermostats to get ovens to match up with crystals. The Morion folks used to have a warehouse full of raw PTC material ready to dice up into thermistors for their “vacuum tube” OCXO’s. They matched it up / chopped it to size as needed …. The manufacturing process on the stuff was not tight enough to deliver it to the accuracy they needed. Bob > thermistors in series-parallel? > > Jeremy > > -- > Jeremy Nichols > Sent from my iPad 6. > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
