Hi Again, there is no basic difference between the 10811-60109 and any other 10811 with the same basic pinout. ( They made two packages, one with an edge connector. Eventually they wrapped one up to put it in a GPSDO). The only difference between the 60109 was a test and select process back when it was made. Its been long enough since that test for it to be totally meaningless.
Bob > On Feb 12, 2022, at 10:15 AM, Bill Notfaded <notfad...@gmail.com> wrote: > > Good morning- > > My 5065A has a 10811-60109. I thought that was a standard and part of the > reason they work so well? > > > Best Regards, > > Bill > > > On Sat, Feb 12, 2022, 7:21 AM Bob kb8tq <kb...@n1k.org> wrote: > >> Hi >> >> You just might find that kit will drop into a 5065 with minor >> mods….. >> >> Bob >> >>> On Feb 12, 2022, at 8:39 AM, Ke-Fong Lin <another...@gmail.com> wrote: >>> >>> Hi everyone, >>> >>> Last month, I bought a 10811-60109 on ebay, it was sold with the >>> complete oscillator assembly for a 5061A/B cesium clock. >>> I bought it for the 10811-60109 because it has somewhat better >>> specifications than a regular 10811. >>> >>> It was sold as a spare from military surplus. I've taken a quick look >>> and it seems compatible with the older 5061A connections. >>> I mean electronically, but I'm not so sure about the mechanical part. >>> So it may well be such an upgrade kit, but for 5061. >>> >>> The PCB board doesn't seem complicated and HP basically used >>> "jellybean" components on it. >>> But as for the mechanical part, there would be some work to do. >>> >>> By the way, if somebody wants to do the upgrade for a 5061, I can >>> basically give him/her the complete assembly. >>> Minus the 10811-60109 of course :) >>> >>> Best regards, >>> >>> On Sat, Feb 12, 2022 at 2:10 PM Ulf Kylenfall via time-nuts >>> <time-nuts@lists.febo.com> wrote: >>>> >>>> >>>> Greetings forum. >>>> Yes - I have performed this upgrade, having obtaineda 10811 / high >> performance option. >>>> >>>> While the complete original HP kit was not available, I salvagedthe >> 10->5 MHz divider/connection board from a 105Band re-designed the back PCB >> with the 2 x 15pole 3.96 pitch connectors and mechanics >>>> so that the design would be ableto fit into the 5065A chassis in a way >> that the10811 Coarse adjustment could be reached with a longadjustment tool >> directly. >>>> Picture(s) available upon request. >>>> >>>> I have the design files (Cadence Allegro) as well asGerber/Drill files >> for anyone that want to fabricate sucha back plate board. >>>> >>>> Please contact me off-list if you want thedesign files. >>>> Best Regards >>>> Ulf KylenfallSM6GXV >>>> >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe >> send an email to time-nuts-le...@lists.febo.com >>>> To unsubscribe, go to and follow the instructions there. >>> >>> >>> >>> -- >>> /* Lin Ke-Fong >>> * another...@gmail.com >>> * I always do what I say, especially if it's something stupid. >>> */ >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe >> send an email to time-nuts-le...@lists.febo.com >>> To unsubscribe, go to and follow the instructions there. >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send >> an email to time-nuts-le...@lists.febo.com >> To unsubscribe, go to and follow the instructions there. > <PXL_20220212_151505393.jpg>_______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an > email to time-nuts-le...@lists.febo.com > To unsubscribe, go to and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.