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.martindale@gmail.com> To: Discussion of precise time and frequency measurement <time-nuts@febo.com> Subject: [time-nuts] Visiting Greenwich Message-ID: <CAJU10Sv0GzUFmSJ5O3eoewWf40EokTYtrANLbZfg8KVw6KcW5g@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

They also have TIM the speaking clock which has a rack mounted atomic standard. On 5 Jul 2016 21:01, "John Dalziel - crashposition" <john@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.martindale@gmail.com> > To: Discussion of precise time and frequency measurement > <time-nuts@febo.com> > Subject: [time-nuts] Visiting Greenwich > Message-ID: > <CAJU10Sv0GzUFmSJ5O3eoewWf40EokTYtrANLbZfg8KVw6KcW5g@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. >

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" <cjaysharp@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" > <john@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.martindale@gmail.com> >> To: Discussion of precise time and frequency measurement >> <time-nuts@febo.com> >> Subject: [time-nuts] Visiting Greenwich >> Message-ID: >> <CAJU10Sv0GzUFmSJ5O3eoewWf40EokTYtrANLbZfg8KVw6KcW5g@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.

The ring counters are called dekatrons. I built a clock/timer using them when I was 12 or so. On Tuesday, July 5, 2016, Alan Melia <alan.melia@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" <cjaysharp@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" < >> john@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.martindale@gmail.com> >>> To: Discussion of precise time and frequency measurement >>> <time-nuts@febo.com> >>> Subject: [time-nuts] Visiting Greenwich >>> Message-ID: >>> <CAJU10Sv0GzUFmSJ5O3eoewWf40EokTYtrANLbZfg8KVw6KcW5g@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. > -- I am Pulse. Unbreakable.

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.melia@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" <cjaysharp@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" < >> john@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.martindale@gmail.com> >>> To: Discussion of precise time and frequency measurement >>> <time-nuts@febo.com> >>> Subject: [time-nuts] Visiting Greenwich >>> Message-ID: >>> <CAJU10Sv0GzUFmSJ5O3eoewWf40EokTYtrANLbZfg8KVw6KcW5g@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. >

Looks like a control panel out of a 1950s space movie. On Tuesday, July 5, 2016, Clint Jay <cjaysharp@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.melia@btinternet.com > <javascript:;>> 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" <cjaysharp@gmail.com > <javascript:;>> > > To: "Discussion of precise time and frequency measurement" < > > time-nuts@febo.com <javascript:;>> > > 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" < > >> john@crashposition.com <javascript:;>> > >> 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.martindale@gmail.com <javascript:;>> > >>> To: Discussion of precise time and frequency measurement > >>> <time-nuts@febo.com <javascript:;>> > >>> Subject: [time-nuts] Visiting Greenwich > >>> Message-ID: > >>> <CAJU10Sv0GzUFmSJ5O3eoewWf40EokTYtrANLbZfg8KVw6KcW5g@mail.gmail.com > <javascript:;>> > >>> 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 <javascript:;> > >>> 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 <javascript:;> > >> 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 <javascript:;> > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > -- I am Pulse. Unbreakable.

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 <cjaysharp@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.melia@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" <cjaysharp@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" < > >> john@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.martindale@gmail.com> > >>> To: Discussion of precise time and frequency measurement > >>> <time-nuts@febo.com> > >>> Subject: [time-nuts] Visiting Greenwich > >>> Message-ID: > >>> <CAJU10Sv0GzUFmSJ5O3eoewWf40EokTYtrANLbZfg8KVw6KcW5g@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. >

I have a pdf of a POEEJ article on the speaking clock that came into service 24 July 1936 if anyone is interested. I suspect this predates the one under discussion? I also have a two part article on the Mark 2 built in the UK for Australia.(mid 1950s) DaveB, NZ ----- Original Message ----- From: "Alan Melia" <alan.melia@btinternet.com> To: "Discussion of precise time and frequency measurement" <time-nuts@febo.com> Sent: Wednesday, July 06, 2016 10:17 AM Subject: Re: [time-nuts] Visiting Greenwich > 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" <cjaysharp@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" >> <john@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.martindale@gmail.com> >>> To: Discussion of precise time and frequency measurement >>> <time-nuts@febo.com> >>> Subject: [time-nuts] Visiting Greenwich >>> Message-ID: >>> <CAJU10Sv0GzUFmSJ5O3eoewWf40EokTYtrANLbZfg8KVw6KcW5g@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.

The original speaking clock ( in use from 1936 to 1963) has been restored to working order and is on show at the British Horological Institute at Upton Hall near Newark (UK). Speaking clock N0 2 that replaced No 1 is quartz controlled and also on view at Upton hall. If anyone would like details of them just let me know. Peter Torry On 06/07/2016 06:20, Dave Brown wrote: > I have a pdf of a POEEJ article on the speaking clock that came into > service 24 July 1936 if anyone is interested. I suspect this predates > the one under discussion? I also have a two part article on the Mark 2 > built in the UK for Australia.(mid 1950s) > DaveB, NZ > > > >