[time-nuts] Super stable BVA Quartz resonators... BVA??

[Poul-Henning Kamp]

In message <475BC4C4.1030107 at t-online.de>, Bernd T-Online writes:
>Jeff Mock wrote:

>I can confirm Rick's statement, that there is no noticable effect of 
>aging on the turnover temperature (TOT).

You got me wondering:  How is the TOT determined ?  Is it per unit
or is it per batch ?  How precisely does an OCXO hold the temperature
on the TOT ?

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