Re: measuring secondary parasitic capacitance?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Laurence Davis by way of Terry Fritz <twftesla-at-qwest-dot-net>" <meknar-at-hotmail-dot-com>

tried with a series connected 10m carbon film resistor.
meter consistently read 88pf +- 1.
sec spec: 4.5" coil form, 20" winding length, 30awg heavy build.
IIRC 1200 or so turns, around 1350ft.
meter is a radio shack dmm, model 22.174 rev b.

higher than i expected. perhaps a more accurate meter would help.
larry.
>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: measuring secondary parasitic capacitance?
>Date: Mon, 04 Nov 2002 08:16:45 -0700
>
>Original poster: "Jan Wagner by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><jwagner-at-cc.hut.fi>
>
>Hi!
>
>On Sun, 3 Nov 2002, Tesla list wrote:
> > Original poster: "Laurence Davis by way of Terry Fritz 
> <twftesla-at-qwest-dot-net>" <meknar-at-hotmail-dot-com>
> > just out of curiosity i tried to measure the capacitance of a secondary.
> > my meter kept giving the out of range error, then at one point started
> > to give a reading.
>
>Maybe adding a resistor in series with the coil (say at least 500kOhm)
>will give you a better reading. But check first with a know capacitor that
>the reading is still correct. :)
>
>Maybe the series resistor trick helps?
>
>cheers,
>
>  - Jan
>
>--
>*************************************************
>  high voltage at http://www.hut.fi/~jwagner/tesla
>  Jan OH2GHR