ewkeh...@aol.com wrote:
> The HP 5062C is not a "Primary Standard", and that is why it is called a
> "Reference" because it uses a different transition of Cesium 133 with the
> frequency of 9192.631,774,3 MHz which does not meet the definition of a
> second
>  and resulted in a relative short product life even though modified to run
> with a  FTS tube and "Standard Frequency" makes it a grate Frequency
> Standard.
> Bert Kehren

I never knew that.  I stand corrected on the 5062C.

Rick Karlquist N6RK


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