[time-nuts] pulling oscillators

Rick Karlquist richard at karlquist.com
Sat Mar 5 16:35:39 UTC 2011



paul swed wrote:
> I might ask the question how much pulling are you looking to do???
> Regards
>

Yes, your request is meaningless without this number.

Having said that, you have 2 strikes against you.  Trying
to pull an oscillator that wasn't designed to be pulled
is a problem.  Secondly, the circuit you described works
in so called "parallel" resonant mode.  For optimum pullability,
you want "series" resonant mode.  Do yourself a favor, now
that inexpensive VCXO's are available, patch in one of those.

Rick Karlquist N6RK




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