[sdiy] Capacitor value checking

[Kevin & Kim Wiley]

There is a kit that you can puchase at Debco Electronics at:

http://navigation.helper.realnames.com/framer/1/262/default.asp?realname=Yah
oo%21&url=http%3A%2F%2Fwww%2Eyahoo%2Ecom&frameid=1&providerid=262&uid=300026
93

in which you can purchase for $12.95   -   CA1      It tests caps from 2.2 p
to 2.2 m. It hooks up to your DVM to read the value.
Kevin


----- Original Message -----
From: "harry" <harrybissell at prodigy.net>
To: <jlamb3 at nc.rr.com>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Sunday, September 09, 2001 7:49 PM
Subject: Re: [sdiy] Capacitor value checking


If you have a sine wave generator... you could put a known value
capacitor in series with the unknown value... then use that as an
AC voltage divider.  When the caps are equal... there will be 1/2
the applied AC voltage across each cap.

This would get you within the right decade anyway... good for those
"is it a 22pF or a 220pF"?

H^) harry

John Lamb wrote:

> Is there some way to approximate the value of a cap using a scope?  I
don't have a cap checker and
> cannot find one for cheap, and I need to sort these caps before my head
blows up.  :/  Perhaps I could rig
> it to display the rise/fall time and read it from that?  Any help is
appreciated
>
> Thanks in advance
> John Lamb