[time-nuts] 10544 TCXO used in H/P 5245L counter

paul swed paulswedb at gmail.com
Fri Dec 24 14:39:34 UTC 2010


Odd I see the oscillator is 1 Mhz driving various ddas as they used to call
them.
Did not think a 10544 could work in one of these counters.
Must have been a later version.
Regards
Paul.

On Fri, Dec 24, 2010 at 7:24 AM, Dave M <dgminala at mediacombb.net> wrote:

> Dave M wrote:
>
>> Subject: [time-nuts] 10544 TCXO used in H/P 5245L counter
>>>
>>> I`m looking for a pdf of the schematic of the motherboard that the
>>> 10544 frequency reference plugs onto in the H/P 5245L counter. This
>>> is the one that has a 723N, and a 7490N to produce a 100KHz
>>> reference. Something is amiss with this board.
>>> Thankyou.........................................Don.
>>>
>>>
>> Don,
>> The 10544 oscillator outputs 10 MHz, so the output from the 7490
>> would be 1MHz, not 100KHz.  if that's what you're seeing, then it's
>> working properly.
>>
>
> I forgot to include a URL to the manual.  It's right there on the
> HP/Agilent web site at
> http://cp.literature.agilent.com/litweb/pdf/05245-9044.pdf.
>
>
>
> David
> dgminala at mediacombb dot net
>
>
>
>
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