[time-nuts] New precision watch
iovane at inwind.it
iovane at inwind.it
Mon Dec 19 21:51:05 UTC 2011
danrae at verizon.net wrote:
>The best crystals for room temperature use are around 4 MHz with
>temperature inflections around 20C, and this is what was used in an
>early Braun alarm clock I had which also had this kind of performance.
>Long gone, alas.
and this is what the clock of my old german car does (4 MHz crystal). Its
performance always surprised me.
Antonio I8IOV
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