Cycles per second (CPS) is important for clocks driven by electrical
motors and those motors were synchronous motors because their speed
was governed by CPS. These motors operate in synchronization with
the frequency of the electrical power, hence the name "synchronous"
motor.
The power companies work hard to maintain a close frequency tolerance
that's why this type of motor was used extensively with old analog
clocks (and turntables). The gearing for the hands was set for the
market the clock was sold in, that's why a clock bought in Britain
couldn't keep time in the U.S. and vice versa.
Al Malin
Tricarb
On Oct 31, 2007, at 9:48 AM, insptwo@msn.com wrote:
> Patrick:
> Might you know if your power is 60 or 50 cycles per second. I
> remember back
> in the 50's when I was stationed overseas, the guys would purchase
> very good
> Grundig (not sure about the spelling) record players/radios in
> Europe and
> wwe have to have a machinist mill a different spindle for the
> records to
> turn because of the difference in cycles.
> Bill
> BJ7
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