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 <[email protected]> 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 <[email protected]> > 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 > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > -- 72 de Dave VE7HR _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
