Re: 6ga wire vs 1/4 tubing for 900W coil primary?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Terry Fritz <vardin@xxxxxxxxxxxxxxxxxxxxxxx>

Hi,

Since the wire is flexible, one might be able to make a 
variometer.  If the last turn or so was reversed and wound in the 
opposite direction, perhaps you could have a way to wrap more or less 
of it in the main direction to vary the inductance.

Perhaps the outer opposing turns could be wound on a circular part 
that could be rotated to wind or unwind the wire.

Or, extra wire could be spooled up and unwound off a small off-axis 
spool as needed.

Just a thought,

Cheers,

        Terry


At 04:42 PM 7/29/2005, you wrote:
> In a message dated 7/29/05 6:13:27 P.M. Eastern Daylight Time, 
> tesla@xxxxxxxxxx writes:
> One problem is tuning.  With copper tubing you can just hook to it
> anywhere with a fuse clip to tune the primary.  But insulated wire
> requires you to cut a lot of tap points in the insulation or just get
> it right the first time.
>
> Cheers,
>
>          Terry
>
>
> Hi,
> Remember, any time you change anything about the coil including 
> adjusting the topload height, moving the coil and/or stuff in the 
> room near it, you will have to do some retuning. Murphy's law 
> gaurantees that the new tuning point will lie just under the 
> insulation you haven't cut off YET. ;^))
>
> Matt D.