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

Dave M dgminala at mediacombb.net
Fri Dec 24 12:21:21 UTC 2010


> 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.

Cheers,
David
dgminala at mediacombb dot net






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