[HomeBrew] Re: HomeBrew Digest, Vol 22, Issue 1 EMF meter

[n5tde at gardcircuits.com]

> Permeabilty,ferrite rods, ferrite material having a high mu factor,
air=1, ferrites, 10s of thousands. More crossectional area, lines of
flux, relative to time=voltage (simplified, with apollogies to Mr.
Maxwell and Faraday-N5TDE
>
>
> Today's Topics:
>
>    1. EMF meter? (Dan K9ZF)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 06 Nov 2005 09:01:00 -0500
> From: Dan K9ZF <n9rla at yahoo.com>
> Subject: [HomeBrew] EMF meter?
> To: homebrew at mailman.qth.net
> Message-ID: <436E0C9C.2040906 at yahoo.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Good morning all,
>
> I have a friend to fashions himself to be an "amateur ghost hunter".
> One of the gadgets they use for this is an EMF meter.  He knows I, being
> a ham,  enjoy building all manor of gadgets, so he asked if I could
> build him one.
>
> I gave it some thought, and figured it should be simple.  We want to
> detect fields, so what I need is a big coil hooked to a volt meter....
>
> So I found a roll of old telephone wire in the junk box.  [probably
> 20-24 g, insulated, stranded]  I wrapped about 100 turns on a piece of
> 3/4" pvc and hooked it to a DVM.  I then waved it by a florecant shop
> light to test it, and got nothing....
>
> What am I missing?
>
> Thanks,
> Dan
>
> --
> K9ZF /R no budget Rover ***QRP-l #1269
> Check out the Rover Resource Page at: <http://www.qsl.net/n9rla>
> List Administrator for: InHam+grid-loc+ham-books
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> End of HomeBrew Digest, Vol 22, Issue 1
> ***************************************
>