[time-nuts] HP105B

[Tom Van Baak]

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