I guess that the additional question would be: How stable is the mains
frequency in the UK? We use it in the US because it is very stable.. I
understand that in the former soviet union, the mains frequency was
terrible. Whenever I open up old soviet clocks they always have a
crystal in them (and old US clocks always use the mains).
-Adam
On 1/18/2012 10:34 AM, David Forbes wrote:
On 1/18/12 11:07 AM, dr pepper wrote:
Take care of clocks using the mains as a timebase like the ones
posted, they are for 60hz, ok in the us, but wouldnt be any good here
in the uk.
You just need to change the first 7492 frequency divider chip to a
7490, then it will work at 50 Hz.
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