12 Oct
2007
12 Oct
'07
10:35 p.m.
Bryan Pope wrote:
Speaking of the quartz crystal, when did the first
one(s)
(approximately) come out?
In the context of classic computing I'm guessing you're asking about
crystal controlled oscillators?
The first use of a quartz piezoid to control the frequency of an
oscillator circuit is generally credited to Cady in 1919. The more
familiar Pierce oscillator dates to 1923.
--
Chris Kennedy
chris at mainecoon.com AF6AP
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