[time-nuts] R&S XSRM Rubidium

[paul swed]

Lamp is orange purple

On Sat, Jan 8, 2011 at 9:56 PM, Magnus Danielson <magnus at rubidium.dyndns.org
> wrote:

> Hi!
>
> My R&S XSRM Rubidium is having problems. It behaves as there is no light
> from the lamp, and I can't see any light from it, but I let it warm up
> again. The manual doesn't give clear indication on how one should observe
> light, but it seems like there is three locations where some light might be
> observed if there where any.
>
> The lamp assembly do have a 100 MHz resonance going and the assembly do get
> hot. I need to check the temperature thought.
>
> Spare Rubidium lamps seems to be a bit hard to get by. Having asked R&S
> about it I have not been given any indication of availability. R&S has
> designed the unit such that the lamp can be switched while the rest of the
> unit remains hot. They should have included a small supply of lamps too...
>
> I assume that the light is visible, I seem to recall it and I am just too
> lazy to check the colour right now.
>
> If anyone has experience in the XSRM or similar (HP5065A for instance)
> beasts, please let me know. It would be greatly apprechiated if assistance
> would let it could go into operational state again.
>
> The resonator package is certainly not miniatyrized.
>
> Cheers,
> Magnus
>
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