Hi There is no reason (at this point) to do anything other than characterize what you have. Parts age, repairs are made, stuff happens (shock / vibration / rain).
Bob > On Nov 17, 2014, at 10:13 PM, bownes <bow...@gmail.com> wrote: > > Is there a quick and dirty summary of which are the "good" 10811's? > Otherwise, I clearly need to go through my collection and characterize them! > :) > > I should probably do that anyway... > > > >> On Nov 17, 2014, at 21:50, Bob Camp <kb...@n1k.org> wrote: >> >> Hi >> >> As best anybody can tell, the improved phase noise and ADEV 10811’s came out >> of a screening / select process. There is a finite chance that a “normal >> part number” 10811 could be as good as or better than a part from one of the >> “better part number” versions. >> >> Bob >> >>> On Nov 17, 2014, at 9:42 PM, John Allen <j...@pcsupportsolutions.com> wrote: >>> >>> As you all know, but has not been mentioned, is that there are many versions >>> of the venerable 10811, which different specifications, including phase >>> noise and stability. >>> >>> >>> >>> The well known HP document 90027-1 lists many of them, and thanks to TVB, it >>> is here: >>> >>> http://www.leapsecond.com/museum/10811a/90027-1.pdf >>> >>> >>> >>> The contents include >>> >>> 1 10811D/E Crystal Oscillators 2 10811D/E Option 001 3 10811D/E Option 002 >>> 4 10811D/E Option 003 5 10811D/E Option 100 >>> >>> 6 10811-60111 7 10811-60109 8 10811-60209 9 10811-60211 10 10811-60102 11 >>> 05071-60219 12 10811-60158 13 10811-60160 >>> >>> 14 10811-60164 >>> >>> >>> >>> I hope that this is helpful. Regards, John K1AE >>> >>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.