A clock made up of electromechanical relays

Electromechanical circuits using relay are Above all A lost art these days, but Sometimes You get people as [Aart] WHO can't resist has turn A stack of clack-clack relay In A functional design, as In This case A clock (article In Dutch, Google Translate).

He was do using Components that [Aart] had come In possession of on THE years, with each recovered part demanding THE usual deletion of old weld, Before be mounted on prototype boards. THE resulting design uses THE 1 Hz time signal Since A Horz DCF77 master clock which he together up has to drive A clock network In her House, as he describe In A forum job has Tours Online (Also In Dutch).

THE digital legumes Since This time signal are used by THE relay network has create THE minutes And hours count, which are read out via A resistance ladder do using 0.1% resistors that to drive two analog meters, A For THE minutes And THE other For THE hours.

Unfortunately, [Aart] did not draw up A schematic Again, And there are A little problems he would be as has solve concerning THE metre indicators that will be put In in front of THE analog dials. These Currently to have weird transitions between sections on THE hour side, And THE 59 – 00 transition on THE minute dial arrived In THE medium of THE ladder. But as [Aart] said, This given THE metre It is own character, which East A assessment that East hard has argue with.

THANKS has [Lucas] For THE advice.