[time-nuts] motorola oncore descriptions

[Jack Hudler]

That's essentially the same circuit.

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On Behalf
Of Jason Rabel
Sent: Wednesday, December 13, 2006 9:07 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] motorola oncore descriptions

I haven't looked at the one on eBay, but I did find the following example (I
think I posted a link earlier today).

http://www.jrmiller.demon.co.uk/projects/ministd/frqstd.htm

I have the parts sitting on my desk, I just haven't had the time to assemble
it yet. I'll report back with some numbers once I get it up and running. I
don't expect it to be anything to write a paper about, but a fun little
weekend project. Like I said before one advantage to it is the cost. The
parts list for me (minus a project box & oscillator) were probably about
$10-$15.  I don't think you could get much cheaper than that for a quick
assembly with and no custom programming.

Jason

> Ah I too wondered about the 10kHz output and wince it came.
> One phase lock circuit being sold on eBay uses this by dividing it down to
1
> PPS.
> Perhaps he wanted to save one 74HC390. 
> 
> Still I wonder what the precision cost is?
> 
> Jack


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