Warren, while my original question was about time-nut measurements made of the mechanical spring-wound clocks, I am also broadly interested in measured data on various types of quartz (and maybe other?) movements.
One advantage of a quartz-regulated mechanical unit is that there is a ticking that could be picked up microphonically or magnetically to do non-interfering measurements. Tim N3QE On Mon, May 4, 2020 at 1:26 PM Warren Kumari <[email protected]> wrote: > On Mon, May 4, 2020 at 11:37 AM Tim Shoppa <[email protected]> wrote: > > > > Has anyone done any time-nuttery with the mechanical clocks available in > > cars up through the 1970's? > > > > Not me, but a few years ago I repaired the clock in a 1980 Ferrari 308 > -- I didn't really think to take many photos, nor did I bother to > check the accuracy, but over the course of 3 or 4 years it was always > "right" (the time showed accurately enough that I didn't notice it > being wrong (modulo DST!)). > This was a quartz unit, made by Veglia Borletti - the issue was that > the tip had sheared off the staff on of the wheels had sheared off > (see photos) - I initially tried repairing it with some tiny pins and > CA glue, but ended up getting another clock from an Fiat and > scavenging the wheel from that... > > Pics: https://photos.kumari.net/Cars/Ferrari-308/Work-Clock/ > > W > > > These were typically spring-wound mechanisms with a solenoid that winds > the > > spring when it approaches wound-down condition. > > > > I can find some good articles on the interwebs about reconditioning and > > repairing and calibrating these > > > > What I'm more interested in, is actual measurements related to > temperature, > > vibration, and other environmental factors. > > > > Tim N3QE > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > > -- > I don't think the execution is relevant when it was obviously a bad > idea in the first place. > This is like putting rabid weasels in your pants, and later expressing > regret at having chosen those particular rabid weasels and that pair > of pants. > ---maf > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
