[time-nuts] Re: Crazy Clock

[Jean-Louis Oneto]

Hi Bob,I had a similar project of driving the 24-hour mechanical Patek clock of an old HP5061 from the 1-PPS of a Raspberry Pi with a GPS module. There was several problems :1) that mechanical clock requires bipolar pulses (+/-12 V if I remember correctly) which were made by RTL or DTL logic in the 5061.2) there is no way to know the hands position, so setting up the time would be difficult. I have put this project on standby for a while, but that could be a good opportunity to revisit it. Have a great day, Jean-Louis OnetoEnvoyé de mon mobile LG------ Message d'origine------De: Bob Camp via time-nuts Date: jeu. 15 déc. 2022 06:10À: Discussion of precise time and frequency measurement;Cc: Bob Camp;Objet :[time-nuts] Crazy ClockHi

I realize that this is a bit of an odd project, but this is Time Nuts …..

I want a analog wall clock that reads out GPS time. As far as I can tell, nobody
is crazy enough to make one and sell it in the open market. If indeed there is
one out there, that
 would be great. This does not have to be a project.

If it is a project, I’m lazy, I don’t want to set the thing and then count on it never 
missing a beat. I want a movement that has some form of feedback. The 
WWVB clocks have a movement like this. I could tear one apart and try to 
reverse engineer the guts. That sounds like. a project inside a project.

Does anybody sell feedback movements like this in the hobby market? If so has 
anybody used one and can vouch for it working for more than a few months? 

Indeed, doing it with a display of some sort would be easier in some respects.
For now at least, I’m looking for a mechanical gizmo with hands that move. 
If it reads out 12 hour time that’s ok. 24 hour time would be super cool, but
it’s not vital. 

Anybody know of a source?

Thanks!

Bob

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