[time-nuts] Efratom SLCR-101 rubidium - what have I just bought?

[Ed Palmer]

Hi Philip,

I also have an SLCR and have found almost no info online.  Here's the 
only thing I found:

http://web.archive.org/web/20000229191126/http://www.datum.com/prod_slcr.html

Ed

On 12/25/2013 7:18 PM, Philip Pemberton wrote:
> Hi guys,
>
> It seems I must have had a bit too much to drink after Christmas dinner,
> as I've apparently gone crazy and bought an Efratom SLCR-101 Rubidium
> frequency standard:
>
>    http://www.ebay.co.uk/itm/400624911534
>
> I suspect this will make a nice companion for my new-to-me (read:
> "pre-loved") Racal-Dana 1991 frequency counter...
>
> Thing is, I'm finding it hard to find any information on the SLCR-101;
> there's a lot of information on the LPRO, but this one is a bit of a
> mystery.
>
> How does the SLCR-101 compare to the LPRO-101?
>
> If the writing on the unit case is to be believed (third photo in the
> ebay listing), the lamp voltage is 8.34V. I found some documents which
> suggest that 6-8V is good for an LPRO, but doesn't explain whether this
> increases or decreases with age? Is higher better, or lower?
>
> Thanks,