As a new member, I thought I should start by contributing something I have posted a copy of Fig. 101 from ‘Electric Clocks’ and my plot of the function. https://groups.io/g/synchronome1/album?id=25662

This item just appeared on Ebay. It says fully restored. When I look at the hands I see a small dome on the minute hand. The seller says it has a new movement. Am I correct in suspecting that a quartz

Hi: Just watched this movie. The Stranger (1946) ORSON WELLES https://youtu.be/5zU7MoRuGDw Spoiler: A clock gets shot and parts fly out, but the clock gets even. -- Have Fun, Brooke Clarke https://www

Moving on, the Contacts between armature and gravity arms don't line up with contact being made just on the edge of the gravity arm point. I can't see any adjustment to bring the point of contact to t

Very handy for testing and running pulse clocks. (video) https://youtu.be/LjBVoOipISY -- Simon GPO Clocks http://www.lightstraw.co.uk/gpo/clocksystems/index.html

Hi All Question from new member to your group, top chop to the pendulum is aluminium, is this a genuine part (though not original to this clock) or later pattern spare? Similarly the gathering arm is

According to Mitchell's "Setting to Work" instructions the total resistance in the Synchronome is made up of of 8.7 ohms (main solenoid) and 2.45 ohms (pilot slave) giving around 11.15 ohms total. My

https://www.invaluable.com/auction-lot/A-RARE-SYNCHRONOME-ELECTRIC-REGULATOR-SLAVE-CLOCK-559-c-5EC4348912?utm_source=inv_kwalert&utm_medium=email&utm_campaign=keywordalertlive&utm_term=2 I'm on lists

Hi all, Am having some problems with three slave dials. The circuit consists of a Master with 10 slaves (dials) operating at 13.81 volts, 0.33 amps and 41.4 ohms. It is powered from a lead acid batter

Hi folks Following on from an earlier post which had a question about a stand for clocks, I finally got off my bum and made one that I have been thinking about for some time. Although designed for GPO

Does anyone by any chance know whether they own the synchronome master clock from St George's baths in Bett’s Street, Stepney. I have the engineers service sheet for it with entries dated from 1964 to

I am collecting long-term clock data in this period and looking at them occasionally I was bothered by noise bursts I could not attribute to anything obvious. Since i live next to a canal I was aware

As I'm making some progress on my reinvention (if I may be so bold as to call it that) I thought that I'd post some pictures of the story so far. I acquired a 'Nome round about the beginning of Januar

Good Evening Everyone I know this is a forum for Synchronome, but I was hoping that maybe it would stretch to other makes? If not, then could someone possibly point me to the appropriate forum? I am r

Ebay buy

Hi That special adhesive is probably the stuff used to bond rear view mirrors to car windscreen glass. Regards Darren Conway 36 Orr Crescent Lower Hutt New Zealand ph +64 (0)4 569 1963 Virus-free. www

Thank you for that very interesting article john. David cements a short price of invar inside the FQ pendulum , and uses that to support the temp compensator under the bob, which is a great idea and o

Matthys in his book "accurate Clock Pendulums" provides the following: Pendulum Materials: F Quartz 0.55 x 10-6 Regular Invar 1.5 x 10-6 Super Invar 0.63 x 10-6 Carbon Fibre <0.5 x 10-6 but the glue i

Just enjoying lockdown by restoring an old GPO clock relay unit. I need to take a little care as apparently, GPOtelephones@... cloth cables were doped with arsenic to stop rats chewing them! Although

Hi, not sure whether you know the correct size of the lead wire, I do not, but I can see that it needs to be larger than 0.4mm to be proud of the slot and squash. Lead wire is difficult to find, if on