[time-nuts] AN/URQ-10A frequency standard

[paul swed]

Gregory
Well I am afraid I have become spoiled in that I use the GPS locked
references these days. They consume little power or maybe about the same
actually as the 10. So I also have a mix of great old oscillators. But for
me at least thats what the 10 would be. I have to say that it was what
started me on the ole time-nuttery way back when I had to adjust our
shipboard radios to the reference incase they ever failed or... Though at
that point I don't think radios would have been on my mind.
I had looked for them at hamfests over the years the closest I came was
some apha grade urq 11,12, or 13 from Frequency Electronics. Anyhow its
never ever worked right at the core.
And thats why it was at the hamfest. I did not pay much for it so can't
actually complain.
You don't really see much of that stuff anymore.
Good luck on the inner oven.
Regards
Paul.


On Sat, Apr 27, 2013 at 8:33 PM, Gregory Muir <engineering at mt.net> wrote:

> On Sat, 27 Apr 2013 16:16:17 -0400, Paul Swed wrote:
>
> >I looked and must have hit the same site you did for the sulzer. Yes I
> >expect a lonnnng warmup. I used them in the navy and we never let them go
> >cold. circa 1973-1979. Took them to the cal lab on battery etc. I thought
> >maybe I would have a manual I don't.
> >You are lucky to get one. Great reference. I do have two model 5a sulzers.
> >I actually use one to generate the lab frequencies for "stuff". I really
> >should put it back together which I can do and just create a more modern
> >divider. That would consume less power and be equally clean also take less
> >space. 1 RU.
> >Regards
> >Paul
> >WB8TSL
>
> These are neat little machines.  But this one is still sticking to it's
> abnormal inner oven
> temp and is not moving.  I'll let it cook a little longer then may have to
> do some invasive
> diagnostics.
>
> I keep an odd assortment of whatever-I-can-find oscillators around the lab
> for use
> as external time base clocks for frequency counters that I use to look at
> frequency offsets in stabilized light sources by heterodyning their
> outputs against a
> calibrated optical source to generate more easily measured RF products in
> the
> microwave range.  I'm hoping this little guy will start to show its stuff
> soon.
>
> Greg
>
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