[time-nuts] Digital Clock kit - no Integrated circuits!

Bob Camp lists at cq.nu
Sat Jan 9 14:52:36 UTC 2010


Hi

It looks like it's a pretty simple circuit. A jumper across one of the flip flops in the divider ring counter should convert it from 60 Hz to 50 Hz pretty easily. 

Bob


On Jan 9, 2010, at 4:26 AM, Poul-Henning Kamp wrote:

> In message <8256BB1C-7284-44F9-BBA5-E2E8E014D3EF at gmail.com>, Scott Burris write
> s:
> 
>> I have just the divide by 60 down to 1Hz done.  It works now that I  
>> found that one diode I put in backwards.
> 
> Is there any sign of a 50Hz option ?
> 
> -- 
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe    
> Never attribute to malice what can adequately be explained by incompetence.
> 
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