[time-nuts] Z3805 initial behaviour after power up

David Forbes dforbes at dakotacom.net
Wed Jun 17 15:50:07 EDT 2009

Magnus Danielson wrote:
> None of these approaches is rocket science to design anymore. HP/Agilent 
> surely could at the time of Z3801A and followers.

Yet the problem of an oscillator having a high drift rate after long-term 
storage is not one that a development team is likely to be thinking about.

Nor is it a problem that can be easily examined, since it requires a bunch of 
old units lying around the development lab. Old units don't exist when the 
product is new, and even if they had traveled back in time to buy and age a few 
units, after sufficient testing they would stop drifting and therefore be 
useless for the test.

Nevertheless, 25 years later we expect the whiz-bang engineers at HP to have 
thought of the problem and solved it.

--David Forbes, Tucson

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