[time-nuts] HP5370A vs B version

[Hal Murray]

kb8tq at n1k.org said:
[Context is 10811s.]
> Because they are an un-sealed unit, power off storage is not kind to them.
> Some take a long time to recover. A few never really seem to settle down. 

What's the mechanism?  Lots of stuff ages faster when it is warm/hot.  I'd 
guess humidity.

What's the time scale?  If 20 years of power off is nasty, is 1 year OK?  1 
month?


What have we learned about packaging since then?  Would a similar design made 
with modern parts hold up better?



-- 
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