Hi,
How many of you leave your 5065A on all the time?
Approximately how many years have you had it running without major
maintenance?
My current "gold standard" 5065A has been running for over 5 years.
Cheers!
Corby
___
time-nuts mailing list -- ti
I have two 5065a's , both running continuously, one since Jan 2017 and once
since Mar 2018. One or the other is monitored every 25 sec by comparison to
a 5071a. I've had no trouble with either one. After a few months, the
ageing rate is so low its hard to measure, although there are environmental
e
Hello Corby,
I keep my HP5065A powered on 24/7 with UPS backup. Like John, I
compare it once or twice a year (to a Thunderbolt running Lady
Heather) and adjust accordingly. I have modified the C-field
adjustment for higher resolution, original (coarse) control is now
under the hood and the fine c
Corby
I do not run the 5061's or 5065 all the time. Only for checks and pump
downs.
Regards
Paul
WB8TSL
On Wed, Oct 23, 2019 at 12:10 PM wrote:
> Hi,
>
> How many of you leave your 5065A on all the time?
>
> Approximately how many years have you had it running without major
> maintenance?
>
> My
Hi Corby --
I normally keep the 5065A running all the time -- it's usually set up as
the "house standard" and I tweak the frequency against Cs every few
months. You know more about its service history than I do. :-)
When it was working, I usually kept the 5061A running full time as local
time st
Hi
If I’m doing stuff, they both are powered up. I run a GPSDO as the local
standard
so that is what runs 24/7/365. In a normal year, they are powered up about 50%
of the year.
Bob
> On Oct 23, 2019, at 11:34 AM, wrote:
>
> Hi,
>
> How many of you leave your 5065A on all the time?
>
> Ap
Corby,
I keep my No. 1 running all the time. Should be about 6 years since I
installed the optical filter.
Adrian
Am 23.10.2019 um 17:34 schrieb cdel...@juno.com:
Hi,
How many of you leave your 5065A on all the time?
Approximately how many years have you had it running without major
mainte
Hi Corby,
I very new to this list and have been monitoring it for the last 6 months. I
was
interested in doing some time dilation experiments with some Cs, but had to
become a little
hesitant when I discovered the price of them.
My initial review of the Cs caused me to conclude there were not
Hi Greg --
The 5065A is a Rubidium standard and unlike Cesium units it doesn't have a
"wear out" mechanism. With a little TLC they can run indefinitely. While they
drift (very slowly), they have much better short term stability than a Cs and
so in some ways are more useful.
John
On Oct 23,
John wrote:
The 5065A is a Rubidium standard and unlike Cesium units it doesn't have a "wear
out" mechanism. With a little TLC they can run indefinitely.
We have heard a lot about vaporized Rb plating (condensing) out on the
cooler spots of the envelope, and the need to refurbish tubes by h
IIRC, there's a description in the 5065A manual about how to restore
the lamp if this happens, but I think the mechanism tends to occur
during long periods of storage, not during operation.
The small telco Rb's certainly have the flooding problem and there the
restoral methods are a bit more ad h
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