[time-nuts] Article on quartz locking pendulum clock
Henry Kolesnik
kolesnik at sbcglobal.net
Sat Feb 4 16:42:35 EST 2006
On th elast page it say many european clock make a complete rev in 45
seconds versus US at 60 secs, I'm confused. I've been to Europe a few time
and don't recall such?
Please enoghten me>
tnx
73
Hank WD5JFR
----- Original Message -----
From: "Dr. David Kirkby" <david.kirkby at onetel.net>
To: "Discussion of precise time and frequency measurement"
<time-nuts at febo.com>
Sent: Saturday, February 04, 2006 3:12 PM
Subject: [time-nuts] Article on quartz locking pendulum clock
>A list member kindly snet me a copy of the article from about quartz
> locking a pendulum clock. It uses an electromagnet and a magnet on the
> pendulum.
>
> I have scanned this at 300 dpi grayscale and converted to pdf. It may be
> found at:
>
> http://www.g8wrb.org/useful-stuff/time/pendulum+quartz.pdf
>
> The file size is 17460323 bytes (16.7 MB)
> The MD5 checksum is AB0E083B25D8438604D83DFC6B2CB38F
>
> dave k
>
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