[time-nuts] [qs1r] Looking for good, cheap, external reference

[Mark J. Blair]

On Sep 22, 2010, at 7:50 PM, Ed Palmer wrote:
>   Does the temperature move around a little or is it a flat, straight
>   line?  If it never moves, it's probably the bad one.  As Bob mentions
>   below, the temperature only changes in large steps with the bad
>   sensor.  The good one has steps in the millidegree range.  I got my
>   chips from the auction place.  Make sure that they are C or D revision,
>   the E revision is the bad one.  Check the list archive for lots of info
>   on this topic.

It does move around, so I think I have the good one. I should be powering it off soon to do some more work on the power supply, so I can open it back up to check the temperature sensor revision.



-- 
Mark J. Blair, NF6X <nf6x at nf6x.net>
Web page: http://www.nf6x.net/
GnuPG public key available from my web page.