[time-nuts] HP5065A environmental sensitivities

[jimlux]

On 5/22/16 10:25 AM, Bob Camp wrote:
> Hi
>
> In 40 years of getting phone calls, the one that never seems to go away starts out with:
>
> “We … errr… measured the temperature rise in our box and need to adjust the upper end
> temperature on your part”.
>


Or, as a designer using an OCXO part, you have to explain to the 
reviewer that just because, after updating the thermal model,  the 
temperature at the part is now 50C instead of 40C, it probably doesn't 
matter, because inside the OCXO's oven, it's even hotter.  Or, even 
worse, that the power dissipation goes down as the outside temperature 
goes up.