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Old 29th Sep 2020, 10:16 am   #23
vosperd's Avatar
Join Date: Oct 2007
Location: Bristol, UK.
Posts: 348
Default Re: Pulsynetic master clock: question about gravity arm roller.

Although I have master clocks from TMC, Synchronome and Magneta I'd not heard of Pulsynetic. Looks like an interesting project.
Just saw one of their slave clocks on a station that Michael Protillo was visiting on one of his railway journeys.
I wonder if anyone remembersthe TMC "SPB", Short Pendulum Bob, master clock.It received it's sustaining pulse at random intervals as the pendulum lost amplitude. A relay energised sending a roller along a ramp which gave the pendulum a rather violent push. Not a brilliant timekeeper as I remember.
Don m5aky
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