Re: Copper Banding?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: robert heidlebaugh <rheidlebaugh@xxxxxxxxxxxxxx>

Scott: The diferance of inductance is caused by various factors. The spacing
is first, second is capacitance. If a coil is thin wire the capacitance
between the windings is low. With banding the surface area between the
windings is high so the capacitance is high. Capacitance is out of phase
with inductance and tends to counter act. The total coil capacitance then
reacts with the external capacitance all shifting the total resonant
frequency acting as though the inductance is changed.
   Robert   H
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> From: "Tesla list" <tesla@xxxxxxxxxx>
> Date: Mon, 28 Feb 2005 09:51:51 -0700
> To: tesla@xxxxxxxxxx
> Subject: Re: Copper Banding?
> Resent-From: tesla@xxxxxxxxxx
> Resent-Date: Mon, 28 Feb 2005 09:52:12 -0700 (MST)
>
> Original poster: BunnyKiller <bunikllr@xxxxxxx>
>
> hmmmm...   for some unknown reason to me I would have to say no   ( just a
> gut feeling) the dia of the primary would be quite different plus you have
> a higher "density" of turns per equalvailent radius...
>
> I suppose it would be like wrapping a secondary with 1000 feet of #30 wire
> compared to #20 wire..  the #20 secondary would be quite a bit
> taller   thus a different L.
>
> Scot D
>
>
>
> Tesla list wrote:
>
>> Original poster: "david baehr" <dfb25@xxxxxxxxxxx>
>>
>>
>> In a previouse post, it was stated that a banded pri. would have less
>> inductance than a copper tubing pri. Could someone explain this ? IF YA
>> got 50' of copper tubing , and 50' of banded pri. , wouldnt be about the
>> same ????????////
>>
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