>Tjaart and I were talking about temperature controllers one day, and he
>mentioned he made a crystal oven with a peltier device and bipolar
>driver(driven by a PIC of course) that maintains 25 deg C. That way the
>crystal aging is reduced, power consumption is low, and there's less
>"warmup" time.

That's cute. Does it work in reverse to cool the crystal when the exterior
temperature is above 25?

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