[time-nuts] GPS disciplined mechanical clocks

Ralph Smith ralph at ralphsmith.org
Wed Mar 4 16:25:53 UTC 2009

I have two Western Union/Self-Winding Clock Company Clocks.  Some  
background info:
<http://www.prc68.com/I/SWCC.shtml> (Brooke Clarke's site, a member of  
this list).

I synchronize mine using my NTP server built from a Soekris NET4501,  
driven by a Trimble Thunderbolt.  Not the same as retrofitting a clock  
not specifically meant for the purpose, but I like it.


On Mar 4, 2009, at 6:52 AM, Steve Rooke wrote:

> Has anyone looked at locking an old mechanical clock to precise time?
> What I'm thinking of is something like an old cuckoo clock. The rule
> is that the clock remains basically standard and is only steered by
> the external source, say, by a magnetic pulse to the pendulum, IE. no
> physical connection. Obviously the correct period of the pulse would
> have to fit the timing of the pendulum. OK, it seems pointless as you
> can't read time with any real accuracy on something like a cuckoo
> clock but I'm sure there is the likelihood of something like this
> being done by someone like us.
> 73,
> Steve
> -- 
> Steve Rooke - ZL3TUV & G8KVD & JAKDTTNW
> Omnium finis imminet
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