bro...@pacific.net said: > The click-click-click... is the self winding. A solenoid vibrates back and > forth and a pawl and ratchet winds the main spring.
I don't think that's what I was referring to. It was a long time ago so my memory may be buggy. The click-click-click... that I remember was loud enough to distract the class. It only happened occasionally, ballpark of once per month or less. The minute hand was making a step with each click. I assumed there was some mechanism to remotely set the clock. I think it ended up roughly correct. (I didn't even have a watch back then.) Was there any alternative to SWCC technology in the 1950s time frame? > There's a heart shaped cam that forces the hour, minute and if the clock has > one the second hand to 12:00 and holds them there until the sync pulse goes > away. Note the second hand only was used on clocks in radio stations so they > could join the network. For that 1 second was close enough. Is that one cam that gets all the hands or a separate cam for each hand? -- These are my opinions. I hate spam. _______________________________________________ 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.
