I do agree its subjective. But my gut says bad is 2-3V I know they seem to run above 3. But whatever. When the blinkOmeter counts I am screwed. :-) Time to get the heatgun. Regards Paul.
On Thu, Nov 20, 2014 at 9:07 PM, Bob Camp <[email protected]> wrote: > Hi > > I normally keep a watch on the lamp voltage (or what ever it actually is). > I was once told by somebody who should know that you simply watch for it to > drop. When it starts going down a couple volts, that’s when you should > start looking for a backup. It may run for months after it starts to drop. > It may run for weeks. There apparently is no good way to be sure. On a part > that starts at 6 to 7 volts, that would equate to something a 3 to 4 volt > limit. > > Bob > > > On Nov 20, 2014, at 9:00 PM, paul swed <[email protected]> wrote: > > > > Unless you have a way to know what they are doing. You won't know if they > > are failing. The initial sign is that they wink-out and restart. You will > > spot it as your gear going nuts for a bit and then magically locking up. > > Also as an approx lamp V in the 2-3V range. Thats really a gross figure I > > can't swear thats EOL. But its some place close to that. > > As such I installed the Rb winkOmeter on my unit. > > Regards > > Paul > > WB8TSL > > > > On Thu, Nov 20, 2014 at 6:09 PM, Bob Camp <[email protected]> wrote: > > > >> Hi > >> > >> So far, I have yet to have one of the Rb’s die (of the ones that worked > >> when new to me). The magic “lamp voltage” on the Efratom versions > clusters > >> in two groups. That seems to be related to some sort of production > change > >> rather than better performance on the (slightly) newer parts. > >> > >> Bob > >> > >>> On Nov 20, 2014, at 9:17 AM, paul swed <[email protected]> wrote: > >>> > >>> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> > 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 <[email protected]> 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 <[email protected]> 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 > >>>>>>>>> _______________________________________________ > >>>>>>>>> time-nuts mailing list -- [email protected] > >>>>>>>>> To unsubscribe, go to > >>>>>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >>>>>>>>> and follow the instructions there. > >>>>>>>> > >>>>>>>> _______________________________________________ > >>>>>>>> time-nuts mailing list -- [email protected] > >>>>>>>> To unsubscribe, go to > >>>>>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >>>>>>>> and follow the instructions there. > >>>>>>>> > >>>>>>> _______________________________________________ > >>>>>>> time-nuts mailing list -- [email protected] > >>>>>>> To unsubscribe, go to > >>>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >>>>>>> and follow the instructions there. > >>>>>> > >>>>>> _______________________________________________ > >>>>>> time-nuts mailing list -- [email protected] > >>>>>> To unsubscribe, go to > >>>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >>>>>> and follow the instructions there. > >>>>>> > >>>>> _______________________________________________ > >>>>> time-nuts mailing list -- [email protected] > >>>>> To unsubscribe, go to > >>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >>>>> and follow the instructions there. > >>>> > >>>> _______________________________________________ > >>>> time-nuts mailing list -- [email protected] > >>>> To unsubscribe, go to > >>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >>>> and follow the instructions there. > >>>> > >>> _______________________________________________ > >>> time-nuts mailing list -- [email protected] > >>> To unsubscribe, go to > >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >>> and follow the instructions there. > >> > >> _______________________________________________ > >> time-nuts mailing list -- [email protected] > >> To unsubscribe, go to > >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >> and follow the instructions there. > >> > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
