[time-nuts] SC Cut

[Bob Camp]

Hi

The answer to any crystal cut origin question is always a bit murky. People
have been chopping quarts in strange ways for quite a while. Certainly the
first to popularize the SC cut were the boys at HP.  

One common answer to these questions is "it's in Heising":

http://books.google.com/books/about/Quartz_crystals_for_electrical_circuits.
html?id=2-4gAAAAMAAJ

Of course a *lot* depends on just how much you read between the lines....

The Wikipedia article is a bit odd. The crystal oscillator industry was
quite crowded long before Statek came along. There is a *lot* of history
missing there...

Bob

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Pete Lancashire
Sent: Tuesday, September 11, 2012 12:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] SC Cut

Curious who came up with the SC cut first ?

The well done Wikipedia page

http://en.wikipedia.org/wiki/Crystal_oscillator

doesn't say

-pete
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