Re: Big Toroids

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>

O W Lundgren. The big versions of the usual smaller spun toroids for 
table top coils will probably require a 2nd mortgage. I think they 
want something like $2000 for an 8x30 with the cost going up faster 
than the volume of the toroid itself (cubed). Hence why you don't see 
many big ones outside professional companies and the rest of us 
resort to using chicken wire/plywood. At some point there's really no 
advantage of spun over handmade chickenwire/plywood from an electric 
field point of view, just looks better and cost thousands more. Even 
if I was a millionaire I'd be extraordinarily depressed if I 
accidently dropped it (probably easy to do with the big/awkward 
ones). If anyone on the  list would make ~8x30's and sell for 
$400-500 that would be a bargain.

Mike
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Friday, September 08, 2006 12:24 PM
Subject: Big Toroids


> Original poster: stork <stork@xxxxxxxxxxxxxxxxxxx>
>
> Hello list,
>
> I'm trying to get the internet address and correct spelling for 
> Lundgren to price big toroids.
>
> RWW