[time-nuts] Other HP 10x manuals (was HP 107BR)

Brooke Clarke brooke at pacific.net
Thu Sep 15 19:29:30 EDT 2005

Hi Chuck:

Is there a procedure in the manual for doing that?



Chuck Harris wrote:

> Hi Brooke,
> I have a 107A/BR manual, that is out on loan for a
> few days.  I'll make it available to you when it comes
> back.
> As to the 1KHz whine.  It can be improved a lot by the
> simple act of cleaning the gears, and replacing the lubrication
> in the ball bearings.  The motor gets louder the more heavily
> it is loaded.
> -Chuck
> Brooke Clarke wrote:
>> HI Jeffrey:
>> I have the following equipment looking for manuals:
>> 107BR
>> 113AR
>> 114BR
>> HO3 115BR
>> My 113AR ran for many years then quit.  I had it in the garage since 
>> the 1 kc wine would drive you nuts if in the house.  Also it was 
>> unbearable if the drawer was cracked open.  Best to have all the front 
>> panel screws  installed and tight to contain the sound.  I had to 
>> replace the photo interrupter and also added an input circuit so it 
>> would take TTL level pulses.  But is sure is nice to see mechanical 
>> hands.
>> Have Fun,
>> Brooke Clarke, N6GCE
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