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A comment on The “432 Hz vs. 440 Hz” conspiracy theory. Parent comment
http://www.network54.com/Forum/27140/message/1296951241/More....
tl;dr: The BBC reference pitch was generated by dividing and multiplying a 1MHz crystal oscillator. A440 was achievable by this means; A439 was not.
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http://www.network54.com/Forum/27140/message/1296951241/More....
tl;dr: The BBC reference pitch was generated by dividing and multiplying a 1MHz crystal oscillator. A440 was achievable by this means; A439 was not.