Posted by
Don Wilhelm-2 on
Jun 24, 2004; 2:15am
URL: http://elecraft.85.s1.nabble.com/K2-resistance-checks-and-K1-KX1-tp368058p368060.html
Brian and all,
If the resistance reading should be >500 and one measures something LOWER
than 500 ohms it SHOULD be something to check carefully - it is the reading
that are higher than 500 that are 'no big deal'.
The more commonly asked question is from folks who measure something
substantially higher - and the proper answer to that IS that it is no big
deal (that is exactly why the 'greater than' symbol is used in the manual.
Perhaps these questions come from those not familiar with the 'greater than'
symbol (>) - I can only guess.
73,
Don W3FPR
Life is what happens when you are making other plans
----- Original Message -----
> I had a resistance check that was supposed to be >500, I got around 370.
> I thought, as you've said, that it was no big deal - turns out it was a
> big deal. The resistance check not only indicated that there was a
> problem, but also helped me know where to look.
>
> The resistance checks can be useful.
>
> On Wed, 2004-06-23 at 03:34, Dave Sergeant wrote:
> > We see frequent mails on here from people doing the resistance checks
> > in the manual and reporting they get (say) 100k when the manual says
> > >500k or whatever. There is some implication in the manual that these
> > values are set in concrete and you shouldn't proceed if they are not
> > met to the letter. Of course we all know that they are checking for
> > direct shorts or similar and measurements somewhat outside the values
> > stated do occur and do not mean a catastrophic error.
> >
> > When measuring with a digital meter, which most of use, the value
> > recorded when measuring components shunted by semiconductors,
> > capacitors and other non linear things will differ enormously between
> > different meters and nothing can be deduced from the reading other
> > than it is not short circuit!
> >
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