[plug] Binary Clock

[Mark J Gaynor]

So RTFM and the solution is clear!

If you don't have the manual then you don't hold the key to the solution!

*********** REPLY SEPARATOR  ***********

On 1/30/04 at 5:13 PM Denis Brown wrote:

>At 17:03 30/01/2004 +0800, Mark J Gaynor wrote:
>
><snip>
>
>>The problem now is the clock runs slow. They use the 60Hz AC as a cheap
>but accurate reference. At 50Hz it runs about 17% slow. For a talking
point it
>>is ok, but as a time piece, that sucks.
>
>Well, all might not be lost, if you can gain access to the clock's innards

>:-)   Years ago I recall a divider chip that took the standard NTSC colour

>TV subcarrier crystal frequency and spat out a 60 or 50 Hz signal, jumper 
>selectable.   Had inbuilt crystal oscillator circuit, you just added xtal,

>some caps and some volts.   Mike out at WorldWide Electronics might have 
>the chips or know of them.  Or roll your own using a 32 KHz RTC or watch 
>xtal and some cmos divider chips.

This is another way to go and I did come up with a solution. However,
by RTFM there is a simpler solution!

>Errr... there's not a jumper in there somewhere to convert the divider 
>chain to 50Hz operation?
>Just a thought ;-)

I reiterate:-
If you don't have the manual then you don't hold the key to the
solution!!!!!


Mark
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