Re: tesla coil is an air core. why?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>" <davep-at-quik-dot-com>

>>what if you used a diamagnetic material as a core.  I thought i saw 
>>somewhere that wood is diamagnetic.
 
> what if you used compressed air?

	Nothing much would change.  Properties of compressed air
	would change a little.

> A tank of compressed air as a core would probably continue to

> arrive at similar hysteresis and inductance problems due 
> to the tank,

	Use a fiberglass tank.

> but the compressed air may provide some added benefit

	Can't think why.

> making it worth exploring?  You conceivably could build a coil

> inside a large tank and compress the air inside, but it seems

> the tank would have to be pretty large to 
> test anything useful with it, and even then......
	IR, compressed air has higher breakdown (as does lower

	pressure air...  its a curve...)  But the effort
	is substantial.

	best
	dwp

...the net of a million lies...
	Vernor Vinge
There are Many Web Sites which Say Many Things.
	-me