[time-nuts] HP105B

[Dave Miller]

Thank you everyone for providing all this information.
I think I am well equipped to repair my unit when it arrives.
I welcome comments on adding an additional output for 10 MHz to the unit..
Thanks
Dave
VE7HR

On Wed, Nov 4, 2020 at 12:32 AM Tom Van Baak <tvb at leapsecond.com> wrote:

> Thanks much to Charles for a quick response. I've placed his PDF/scans
> here temporarily:
>
>
> http://leapsecond.com/museum/10811a/HP_105A_B_manual_addendum_later_units_with_10811_OCXO_1989.pdf
>
> http://leapsecond.com/museum/10811a/HP_105A_B_schematics_later_units_with_10811_OCXO_1989.pdf
>
> The permanent location will of course be Didier's superb time-nuts
> manual archive at:
>
> http://www.ko4bb.com/manuals/
>
> /tvb
>
>
> On 11/3/2020 9:10 PM, VE7HR wrote:
> > Thank you Charles,
> > That will be a great help.
> > I shall wait for them to surface.
> > Looking on K0KBB there might be another addendum that is posted but no
> schematics.
> > It appears my unit has an 10811 in it.
> > Has anyone modified the HP105x to bring out the 10MHz to the outside?
> > Seems it might have utility.
> > If I recall the older units bring 5 MHz almost straight out to the
> connector.  And divide down for the rest.
> > I am guessing I am not the first person to think this is a interesting
> idea.
> > Any downsides to doing this.
> >
> > Thanks
> > Dave
> > VE7HR
> >
> > Sent from my iPhone
> >
> >> On Nov 3, 2020, at 8:59 PM, Charles Steinmetz <csteinmetz at yandex.com>
> wrote:
> >>
> >> Julian wrote:
> >>
> >>> I also have one  *  *  * , if anyone has a manual.
> >> As far as I know, HP never published a manual exclusively for these
> later 105s.  But there is a 39-page addendum to the 105A/B manual, dated
> April 5, 1989, which contains what you need.
> >>
> >> I just uploaded the addendum to Didier's site (ko4bb.com).  I uploaded
> two files -- one contains the complete addendum, the other contains the
> schematics only (2, 11x17" sheets).  The file names are:
> >>
> >> HP_105A_B_manual_addendum_later_units_with_10811_OCXO_1989.pdf
> >>
> >>      and
> >>
> >> HP_105A_B_schematics_later_units_with_10811_OCXO_1989.pdf
> >>
> >> Once Didier moves these files out of the "holding pen" into the
> "general population" (likely days to weeks), you will be able to search for
> and download them.
> >>
> >> Best regards,
> >>
> >> Charles
>
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-- 
72 de Dave
VE7HR