I have the wall mounted version. I believe that the hour adjust solenoid took 100 volts or so. I will check my manual on the clock. At a minute before the top of the hour until a minute after the hour all traffic would stop on the WU lines and at the top of the hour a 100 v dc pulse came over the lines to reset the time. I believe it was in the 30s when WU decided they did not want to be in the time business and discontinued the service and said everyone could keep their clocks. I can imagine the next day clocks going home with office workers. WU charged a buck a month for the clock, service, and batteries. Many large offices had hundreds of these clocks.
The book "American Clocks -Volume 2" by Tran Duyly has everything you ever wanted to know about self winding clocks. 73, Bill, WA2DVU Cape May --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com _______________________________________________ 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.
