[time-nuts] 5071A
Bob kb8tq
kb8tq at n1k.org
Sun Jul 5 20:12:06 UTC 2020
Hi
My recollection is that if power is cycled, it drops out of “continuous operation
mode”. There *might* even be BBC footage documenting this … :)
Simply put, all of these devices ( 5071 and the other HP atomic standards I
have seen) *only* go into continuous operation when you push a button. Anything
odd that comes along takes them out of this mode. It’s just a flip flop so you
can’t read a lot into it being off. Power line voltage “out of spec” is one way
to nuke it (at least on some HP’s ).
Bob
> On Jul 5, 2020, at 2:50 PM, Bill Notfaded <notfaded1 at gmail.com> wrote:
>
> If the power is cycled on one of these will it always go into attention
> mode yellow until cleared? Or will it go green continuous operation all in
> it's own? If one of these has been on the shelf a while is it common for
> one even with a good tube to report attention yellow for a while until tube
> pumps down and eventually will the yellow clear on it's own?
>
> Bill
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