Re: Tesla Coil on TV Science Show.
At 22:46 2/12/98 -0700, Ed wrote:
> As posted here recently, McMaster Carr sells various metallic spheres,
>at rather ridiculous prices. One thing they sell at a more reasonable
>price is polypropylene floats. An 8" diameter one is around $15.00.
>That thing could be carefully wrapped with aluminum tape, carefully
>burnished with a spoon, to make a pretty decent terminal. I intend to
>try this for the next van de Graaf generator I build, and its should
>work even better with a TC, which can tolerate more surface roughness.
>Also, C&H Sales has an enormous stock of 12" globes (cheap world maps,
>that is) for around $4.00 each. Only problem is the plastic is pretty
>thick and they are quite heavy. Worth giving the same treatment.
My earth terminal is a $1 styrofoam ball from "Cheap as Chips", wrapped in
aluminium tape. This is probably better value ;-)