[Test-Equipment] How to get a capacitor standard calibrated/validated/verified?

[Barry]

Hi Bob,

Unfortunately, I don't have a GDO or a known inductance :(

Thanks for the reply,
Barry - N4BUQ


 On Tue 01/11/11  1:23 PM , rbethman rbethman at comcast.net sent:
> If you have a GDO, and a *KNOWN* inductance, then you can do the 
> resonance, with the capacitor standard in parallel with the known 
> inductance, and use the tables with the manual of the GDO.
> 
> Bob - N0DGN
> 
> On 11/1/2011 2:09 PM, Barry wrote:
> > I have a General Radio 1409-X (0.5uF) capacitor
> standard for which I would like to know how close to 0.5uF it really is. 
> How would one go about getting this done?  It's not exactly a "calibration"
> procedure as much as it just a "check" but I assume a cal lab would do
> that.  Anyone know where I could get this done and approximately how much
> it would cost?>
> > Note that this is for personal/hobby use and does
> not have to be NIST traced, etc.  I'm trying to repair my GR1617A whose
> standard capacitor failed.  I have a temporary "standard" I made that's
> close but I'm wanting to make something a bit better.  I'm wanting to use
> my 1409-X as a comparison cap to trim the new standard capacitor but don't
> know just how close my "standard" is to 0.5uF.>
> > Thanks,
> > Barry - N4BUQ
> >
> >
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