[time-nuts] Re: Regarding HP 5065A upgrade to 10811-oscillators

[Bill Notfaded]

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 <kb8tq at 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 <anotherlin at 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 at 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
> >>
> >>
> >> _______________________________________________
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> >
> >
> >
> > --
> > /* Lin Ke-Fong
> > * anotherlin at gmail.com
> > * I always do what I say, especially if it's something stupid.
> > */
> > _______________________________________________
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