RE: Big Toroids and Ross Engineering

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Daniel McCauley" <dhmccauley@xxxxxxxxxxxxxxxxxxxxxxxxxx>

Forget about Ross Engineering.  They are NOTORIOUS for charging exhorbitant
prices for their products.  Plus, their toroids are sold in halves (not
seamless) unlike O.W. Landergren.  If you want to find out something really
funny, ask them for a quote of their 2" aluminum corona balls. . .

D&M Voltage used to make some awesome toroids back when they were still
doing them and they were perfect for the price.

Dan


>$2000 for a 30x8 toroid sounds outrageous.  Several years ago I
>purchased a 32x8 toroid from Ross Engineering for $800.
>http://www.rossengineeringcorp.com/toroids_spheres_corona_nuts.htm
>I wonder if they would entertain the idea of a group buy.
>Dave
>Pleasanton, Ca
>
>At 11:30 PM 9/8/2006, you wrote:
>>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