[ARC5] LM Questions

[DSP3]

Jack,

I just did a quick test on two LMs, here.  Both exhibited corrector 
values plus and minus from center.  I would think that given age and all 
else conspiring, that so long as the final corrector setting is within 
its adjustable range, no foul.  It would appear to me that the big issue 
is if the calibrator crystal is on frequency, or not.

Jeep - K3HVG


On 11/13/2017 11:55 AM, Jack Antonio wrote:
> I've been playing with my LMs lately, and
> would like to compare an observation.
>
> This concerns the oorrector. I have 3 and
> they all do pretty much the same thing.
>
> At the 2000 kc checkpoint, the corrector will
> be between 4 and 5. At the 4000kc checkpoint,
> the corrector will be at 2 to 3.
>
> I'm wondering if this is pretty much normal
> for these 70+ year old instruments, or is this
> an indication of aged components or other
> problem?
>
> I am assuming that when these were brand new
> the corrector didn't change much if at all
> across the band, would this assumption be
> correct?
>
> It doesn't cause too much of a problem, all
> three of my meters do much better than the
> ..01% specified in the manual.
>
> Jack Antonio
> WA7DIA

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