[time-nuts] FE-5680A Rb Questions
Azelio Boriani
azelio.boriani at screen.it
Fri Dec 16 13:36:28 UTC 2011
Yes, of course, in that sense: the life must be restored at some time.
On Fri, Dec 16, 2011 at 2:29 PM, Chuck Harris <cfharris at erols.com> wrote:
> It has been pretty well shown that the lamp life is
> effectively infinite. The only thing that happens to
> shorten an effective useful "campaign" of the lamp is
> when the Rb plates out on the lamp envelope, and
> renders the glass opaque. That problem, however, is
> easily remedied, by heating the glass until the Rb
> evaporates, and then allowing it to redistribute to
> a more desirable position out of the optical path.
>
> Disassembly, and a heat gun are all that is necessary.
>
> -Chuck Harris
>
> Azelio Boriani wrote:
>
>> I think every Rb has a finite lamp life...
>>
>> On Fri, Dec 16, 2011 at 11:41 AM, Neville Michie<namichie at gmail.com>
>> wrote:
>>
>>
>>> Does the FE-5680A have a similar Rb cell to the LPRO-101?
>>> If so do they have finite lamp life, (can you find the one you buy has
>>> little life left?)
>>> Or by not reporting the status of the lamp no-one worries about it?
>>> cheers,
>>> Neville Michie
>>>
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