[time-nuts] Selling Time and Frequency Equipment Or "just saying"

[Dr. Ulrich L. Rohde]

Interesting, you have a data sheet and a picture of this wonder ?

73 de N1UL 

Sent from my iPhone

> On Feb 24, 2018, at 5:14 PM, <cdelect at juno.com> <cdelect at juno.com> wrote:
> 
> First, full disclosure, I have no vested or financial interest in the
> 5065A he is selling.
> 
> Now the 2816A prefix is the last series built so the most modern.
> The last one I remember on eBay went for OVER $4000.00
> 
> Comparing a 5065A to a Cesium (except maybe a working 5071A for the same
> price)\is worse than Apples and Oranges.
> 
> Ask Bert who got rid of his 5065A years ago because he had a Cesium, he
> regrets that now and just got a new one!
> 
> A 5065A buyer is looking for the best short term stability he can find
> (nominal 1.5X10-13th at 100 Sec)
> Keeping on frequency is easy via GPS comparisons.
> 
> A Cesium buyer want NIST traceable accuracy "out of the box" and never
> (practically) having to adjust the frequency. The Cesium will be worse
> when  compared to the 5065A at shorter Tau even if it has a high
> performance tube.
> 
> Another thing to consider when buying a Cesium is what is the condition
> of the tube. The tube will die, just don't know when. (probably at the
> most inconvenient time!), and lets not ask what a replacement tube costs!
> 
> There is no perceptible wear mechanisms in play for the 5065A (I have
> seen exactly one failed lamp in many years of working on them) Many of
> the first 1968 series built will still perform to specs today.
> 
> So,
> 
> Just saying!
> 
> Cheers,
> 
> Corby
> 
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