[time-nuts] SC Cut

[Richard (Rick) Karlquist]

There is plenty of documentation at the IEEE web
site in the UFFC society's section.  EerNisse
gave a paper at the Frequency Control Symposium
on it at the time.  Kusters followed up a year
later with experimental data.  I am not aware of
any controversy about these two guys being the
inventors, and I have attended many FCS's.  I
don't know how you prove to the Wiki police that
there is no paper predating EerNisse's paper.
Maybe there is a patent on it.

On 9/11/2012 2:22 PM, jim s wrote:
>
> On 9/11/2012 10:01 AM, Richard (Rick) Karlquist wrote:
>> The SC cut crystal is generally credited to Jack Kusters
>> (of HP) and Errol Ernisse.  The story was something like
>> Errol proposed the concept and Jack actually made the
>> first one, which was quite non-trivial.
>> Jack used to joke that "SC" stood for Santa
>> Clara.  (Jack and I worked for the old HP Santa Clara
>> Division).  Jack, along with Charles Adams and Jim Collin,
>> produced 100's of thousands of SC cut crystals and taught the
>> rest of the industry how to make them.  Jack was very
>> particular about making them "correctly" in terms of
>> angle of cut, etc.  He was really proud of his X-ray
>> system that was accurate to 2 arc-seconds.  This was
>> instrumental in being able to actually fabricate "true"
>> SC cut crystals.
>>
>> Rick Karlquist N6RK
> If there is a web citation of this, I can edit the article and add the
> citation and information.  I don't like any of the citations in the
> section about SC cuts because none of the verbiage is still visible and
> as you mention the critical information as to the origin is missing
> after stating it originated in 1974.  At the least a citation with
> Rick's info and a date would be better in the first sentence if it is
> online.
>
> I hate that they require online citation, but have no way of ensuring
> you can go to the source material even given the link. There is a peeing
> contest ongoing about that on another thread and list which is why I'm
> responding here.these bits of information from you guys who probably
> know better than most are not considered the "best" source, which I
> think is silly.
>
> jim
>
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