Measuring Capacitors

[Goddard, Duncan]

I used the one I had to measure a handful of caps in the range of 10-20pF to
find a matching pair for the speed control circuit of a revox 1/4" machine;
this value was critical in determining the free-run speeds of the oscillator
at exact multiples of one frequency; the dvm was accurate enough (judged by
it's own frequency meter and by the is-it-an-octave-higher? method).
it really depends what you want to use it for- I'd certainly say they were
accurate enough to get you in the ballpark, especially if the colour code or
writing is unusable on a component, but most of the stuff I do with small
values tends to be "does it achieve the result? if not, try another one"
anyway.
d.

> ----------
> From: 	John E Blacet[SMTP:blacet at monitor.net]
> Sent: 	19 December 2000 13:37
> To: 	Jon Darby
> Cc: 	synth-diy at node12b53.a2000.nl
> Subject: 	Re: Measuring Capacitors
> 
> A lot of inexpensive DMMs have a capacitance function these days. I have
> noticed that they tend to be real inaccurate below 250 pF.
> -- 
> 
> Regards.
> -------------------------
> John Blacet
> Blacet Research Music Electronics
> http://www.blacet.com
> -------------------------
> blacet at monitor.net
> -------------------------
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> http://www.blacet.com/mailform2.html
> 


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