[time-nuts] KS-24361 10 Mhz mod interesting document -> older KS boxes

paul swed paulswedb at gmail.com
Thu Nov 20 09:17:14 EST 2014


On the old telco RBs $25 they all worked, but were down on lamp life. So
the first one chosen ran for 3 years and then started blinking out.
Replaced it with another. That first one is the one I used the heat gun on
and is again operable with what appears could be good lamp life.
(Reasonable)
Regards
Paul
WB8TSL

On Thu, Nov 20, 2014 at 7:00 AM, Bob Camp <kb8tq at n1k.org> wrote:

> Hi
>
> So far, I have not found any of the Rb’s that came out of the KS boxes
> with troubles. The ones I got and pulled from boxes myself all have worked
> fine. The units that got pulled on the other side of an ocean, not so much.
> There have been a couple of them with issues. What ever they go through
> getting shipped overseas and salvaged, it’s not doing the parts any good.
> That’s one of the reasons getting the newer design KS boxes NIB has a lot
> of appeal. There are infant mortality reliability issues to deal with on
> new stuff. I’d rather have those issues than end of life and corrosion.
>
> Bob
>
>
> > On Nov 19, 2014, at 9:05 PM, paul swed <paulswedb at gmail.com> wrote:
> >
> > And I am the happy owner of 4 or 5 of the $25 RBs. Hey they are old but
> you
> > can recover them with the old heatgun trick. That said glowing things
> like
> > those do tend to wear out. I could see why they moved away from them.
> >
> > On Wed, Nov 19, 2014 at 8:15 PM, Bob Camp <kb8tq at n1k.org> wrote:
> >
> >> Hi
> >>
> >> Lucent has been putting GPS based Radio Frequency Timing Generators
> (RFTG)
> >> into cell sites for a long time. They all have the 15 MHz and pps
> outputs
> >> in common. Lucent also seems to like one paint color and an approximate
> >> size. For what ever reason (because they can?) the model numbers and
> >> internal designs change from time to time. For quite a while they really
> >> liked the idea of running Rb’s in cell sites. Looking at the latest
> batch
> >> of parts, that seems to have changed around 1999.
> >>
> >> Lots of generations of very similar looking boxes with very different
> >> stuff inside each of them.
> >>
> >> Bob
> >>
> >>> On Nov 19, 2014, at 7:53 PM, paul swed <paulswedb at gmail.com> wrote:
> >>>
> >>> I just saw the picture of the units front panel and it looked the same.
> >>> Oh well.
> >>> Regards
> >>> Paul
> >>> WB8TSL
> >>>
> >>> On Wed, Nov 19, 2014 at 7:08 PM, Bob Camp <kb8tq at n1k.org> wrote:
> >>>
> >>>> Hi
> >>>>
> >>>> This is a branch thread that never got it’s title changed to drop the
> >>>> KS-24361 part of it. More or less it’s “compare the older KS boxes to
> >> the
> >>>> newer ones”.
> >>>>
> >>>> Bob
> >>>>
> >>>>> On Nov 19, 2014, at 6:03 PM, Dan Rae <danrae at verizon.net> wrote:
> >>>>>
> >>>>> On 11/19/2014 2:47 PM, paul swed wrote:
> >>>>>> Was doing a search for Lucent RFTGm-II-XO looking for alternates to
> >> the
> >>>>>> $150 solution.
> >>>>>> A 10 Mhz mod popped up.
> >>>>>>
> >>>>>> http://telcodata.us/~myself/Lucent-RFTGm-Modification.pdf
> >>>>>>
> >>>>>> Looks simple enough and I have not validated anything.
> >>>>>> Regards
> >>>>>> Paul
> >>>>>> WB8TSL
> >>>>>>
> >>>>> Paul, that has nothing to do with the current ebay offerings that
> have
> >>>> generated so much traffic recently...
> >>>>>
> >>>>> Dan
> >>>>> _______________________________________________
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