Search:

Type: Posts; User: Arran

Search: Search took 0.01 seconds.

  1. Thread: Electric clocks

    by Arran
    Replies
    9
    Views
    2,023

    Re: Electric clocks

    Impulse clock systems are probably the most interesting electric clocks. They consist of a master clock, which is a machine that produces high accuracy electric pulses, and a number of clock faces...
  2. Thread: Electric clocks

    by Arran
    Replies
    9
    Views
    2,023

    Electric clocks

    Mains powered clocks with an induction motor became popular in the 1930s but were still being made in the 1970s before battery powered quartz clocks replaced them. Smiths and Metamec appear to be...
Results 1 to 2 of 2