[time-nuts] how long dues this rubidium standard last for
Bob kb8tq
kb8tq at n1k.org
Wed May 9 22:21:21 EDT 2018
Hi
Rubidium standards are a “who knows” sort of thing in terms of life. Best guess
for the telecom Rb’s is 10 to 20 years. For a normal Cs standard with a high
performance tube, the life may be in the 6 or 7 year range ( I have replaced a
couple of those).
The HP 5065 is a rare beast. One sold on the list a little while back for ~$4K.
Bob
> On May 9, 2018, at 5:45 PM, Paul Bicknell <paul at bicknells.f2s.com> wrote:
>
>
> Hi all
> as I am new to time nuts could someone please help with e following
>
> questions
>
> I have a Racal 9475 and a comment was it is a good entry level rubidium
> That is not working yet
> how long dues the rubidium standard last for and how much to replace ?
>
> I assume rubidium & cesium's are left on 24/7
> ?
>
> I think I would like a HP 5065
> so how long dues this rubidium standard last for
> ?
> and how much to replace
> ?
>
>
> regarding the HP 5065 how much am I going to have to pay for one
> ?
>
> I want to also do the Corby Dawson optical window modification
> so How much is the new optical window
> ?
>
> I realise the are a lot of questions but any answers would be welcome
>
> Regards Paul B
>
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