Re: scoped coils

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

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi Chris,

I have been thinking about this and I don't have any answer 0:-|

Normally, I would think the fields around the coil would be very sensitive
to your have and would easily show the effects no matter what kind of wire
and such was used.  the plastic wire coil really "should" be just as sensitive.

I assume you had them both hooked up to the scope and all exactly the same.
 My best guess is that something was not right with the test.  But other
than that I am stumped...  Here are diagrams of the usual fields around coils:

http://hot-streamer-dot-com/andrewb/models/models.htm

Cheers,

	Terry


At 06:33 PM 3/29/2002 +0000, you wrote:
>Hi all,
>
>I have 2 coils which are both 360khz, one is wound with 0.315mm magnet wire,
>the other is wound with 1.5mm^2 plastic covered wire.  The strange thing is
>that on my scope the tune point for the magnet wire coil is effected VERY
>easily. I need only place my had about a foot away from it and its enough to
>knock the coil totally out of tune on the scope.  The plastic wire coil
>stays in tune and you can hardly get it to move even if you place you hand
>right on it. Does anyone know whys these 2 coils behave the way they do ?
>
>Thanks,
>Chris
>