[time-nuts] GPS disciplined mechanical clocks

Mark Sims holrum at hotmail.com
Wed Mar 4 20:54:30 UTC 2009

I once GPS disciplined a friends grandfather clock from the mid 1700's.   Used an opto interrupter and solenoid to nudge the pendulum.  If I remember right I had to generate 24 pulses per minute.  It worked surprisingly well.   The next mod was to make it self winding,  but she moved away before that happened.   


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