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Re: tesla coil is an air core. why?
Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net>
Tesla list wrote:
> Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> > why does the tesla coil use an air cored design?
> Short answer:
> Because that's what works best, so far.
> Tesla started with cored coils. With the materials
> available, he found that air core (no core) worked
> best. I'd guess new materials (except maybe
> ferrite) have not changed this.
His iron-cored coils were short and fat, and used a lot of
insulation. They worked of course, just as ignition coils work.