Hello, Time-Nutters-- A friend has a vintage oak-cabinet pendulum movement clock made by The Self Winding Clock Company some time around 1903. The company was formed in 1886. By the early 1900's era, this clock was known for its relative accuracy. These clocks were pendulum controlled and powered by a rather small and frequently reset mainspring that was wound hourly by a set of 1.5 VDC dry-cell batteries. In 1890 (?) the Naval Observatory agreed to telegraph standard railway time. Western Union, which also owned the Self-Winding Clock Company, sold these clocks to the railroads and sent the hourly time coordinating signals around the country by telegraph. My friend has one of the railroad clocks that has the Western Union Telegraph hourly resetting option.
My friend thought it would be an interesting juxtaposition of technology from two different eras by creating the momentary 3-volt resetting pulse every hour from a GPS disciplined oscillator / clock pulse. I am wondering what the easiest approach to this might be? I suppose I could take the 1-sec pulses from a GPSDO (Trimble Thunderbolt ?) and count 3600 of them to generate a momentary reset 3VDC signal. In any event, I thought I would pass this by the Time-Nuts gang to see if any feedback is available as to what the least complicated (simplest) way might be to accomplish this. Mike Baker *************** _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.