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Re: Tesla Coil on TV Science Show.
Two things:
> Original Poster: gweaver <gweaver-at-earthlink-dot-net>
>
> Sunday morning at 8:47 am I saw a very interesting Tesla Coil on TV.
>
> The Flat primary coil looked like it was 25 feet diameter on the outside.
> About 20 turns of what looked like copper tubing. The primary looked like
> it was wound with 1/2" copper tubing spaced about 1/2" between tubes. The
> inside diameter of the primary was about 23 feet.
>
> Around the inside diameter of the primary coil was 8 secondary coils. Each
> secondary coil looked like it was about 4 or 5 feet tall with a small sphere
> on the top. The sphere shape was about 3 or 4 inches larger than the
> secondary coil. The primary looked like it was about 2 feet above the floor.
Who built the unit?
> The secondary coils looked like they were spaced about 6 or 7 feet apart
> around the inside of the primary coil. All 8 secondary coils were making
> streamers to each other and across the middle. It was very impressive with
> so may streamers going in several directions from each coil all at the same
> time and 20 foot sparks across the middle.
>
> Sorry I can't provide any more information. The science show flashed up
> stuff very fast on the TV screen about several different museums, each one
> lasted only about 5 seconds. I just happened to be there at the right time
> to see it.
>
> This gives me an idea. I should be able to duplicate this on a smaller
> scale. A flat primary coil 36" outside diameter, 1/4" copper, spaced 1/4"
> between turns, about 10 turns. 8 secondary coils evenly spaced on the
> inside of the primary coil wound on 2" or 3" pvc pipe. Small copper sphere
> in each coil.
I would think that every second coil was wound in the opposite sense
to its neighbours to get the sparking from coil to coil. Kudos to
whoever thought of this idea.
Malcolm