[Test-Equipment] Mesurements Corp Model 111-B question

Robert Roehrig (K9EUI) broehrig at aurora.edu
Sat Jul 16 18:45:03 EDT 2011



----- Original Message -----
> Richard,
> From my fading memory, 32 PF was the industry-wide standard value of
> circuit shunt capacitance for crystals operating above the series
> resonance, somewhere below the crystal's natural parallel resonance.
> That is, the crystal reactance at the specified operating frequency
> was
> inductive. Regards, Chase/K4AFW


No - 32 pf was (is) a standard load for a Parallel resonant crystal.
Series resonance did not specify a load capacitance.


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