Speaking of "speaking clocks" - here's two photos of the ones that used to be used in Australia:
https://en.wikipedia.org/wiki/Speaking_clock#Australia The top photo with rotating optical disks is a gorgeous piece of machinery. The one below - I have one, and I keep it running. :-) On 6 July 2016 at 09:30, Clint Jay <cjaysh...@gmail.com> wrote: > Actually, you're absolutely right, the speaking clock is on an upper > gallery display with other timepieces, some of which are amazing. > > I've just looked back through my photo gallery and it's the Greenwich time > service I'm thinking of, a large, five rack wide system that's got (from my > obviously flaky memory) a Loran receiver and an atomic standard. > > Small pic attached. > On 5 Jul 2016 23:28, "Alan Melia" <alan.me...@btinternet.com> wrote: > > > Hi Clint I think when I discussed this last a few years ago with the > > speaking clock designer and David Rooney the man responsible for the time > > gallery at Greenwich. The clock is an early quartz unit, probably made at > > the then Post Office Reseach Labs at Dollis Hill in NW London. The clock > > is quite a beast ! It was found in a skip (Dumpster) having been donated > to > > a university in the late 1940s, and was refurbished by a local enthusiast > > for David. He did a good job because I believe he had no access to any > > documents or circuits. I tried to find some information but it would seem > > the archive has been lost (vandals !!) It probably contains strange > things > > like neon ring counters :-)) > > > > Alan > > G3NYK > > > > ----- Original Message ----- From: "Clint Jay" <cjaysh...@gmail.com> > > To: "Discussion of precise time and frequency measurement" < > > time-nuts@febo.com> > > Sent: Tuesday, July 05, 2016 9:13 PM > > Subject: Re: [time-nuts] Visiting Greenwich > > > > > > They also have TIM the speaking clock which has a rack mounted atomic > >> standard. > >> On 5 Jul 2016 21:01, "John Dalziel - crashposition" < > >> j...@crashposition.com> > >> wrote: > >> > >> I would also recommend the Worshipful Company of Clockmakers collection > at > >>> the Science Museum. It’s a great collection and they have some of > >>> Harrison's wooden long case clocks as well as his final chronometer, > H5. > >>> > >>> > >>> > >>> > http://www.sciencemuseum.org.uk/visitmuseum/plan_your_visit/exhibitions/clockmakers-museum > >>> > >>> > >>> John Dalziel > >>> computus.org > >>> > >>> > >>> Message: 4 > >>> Date: Mon, 4 Jul 2016 18:31:35 -0400 > >>> From: Dave Martindale <dave.martind...@gmail.com> > >>> To: Discussion of precise time and frequency measurement > >>> <time-nuts@febo.com> > >>> Subject: [time-nuts] Visiting Greenwich > >>> Message-ID: > >>> <caju10sv0gzufmsj5o3eoewwf40eoktytranlbzfg8kvw6kc...@mail.gmail.com> > >>> Content-Type: text/plain; charset=UTF-8 > >>> > >>> I am in London England at the moment, playing tourist with the rest of > my > >>> family. I want one day to be a visit to the National Maritime Museum at > >>> Greenwich, which includes the Royal Observatory Greenwich. I am > >>> particularly interested in seeing Harrison's H1 through H4, plus other > >>> high-precision mechanical timekeepers (pendulum clocks, etc). > >>> > >>> I know they are at the NMM - their web site shows some of them. But > where > >>> are they located on the site? The NMM has a large main building down > near > >>> the Thames, while the Royal Observatory and related buildings are on > the > >>> top of a hill further inland in Greenwich Park. Are the chronometers > and > >>> other precision timekeepers on display somewhere in the Royal > >>> Observatory, > >>> or down in the main NMM building? I've spent an hour or two browsing > web > >>> sites without finding this particular bit of information. > >>> > >>> I figure there must be list members who have visited the NMM, and know > >>> where the precision timekeepers are actually displayed. > >>> > >>> Thanks, > >>> Dave > >>> _______________________________________________ > >>> 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. > >>> > >>> _______________________________________________ > >> 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. > >> > > > > _______________________________________________ > > 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. > > > > _______________________________________________ > 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. > _______________________________________________ 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.