[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [TCML] air core



On 11/10/2012 5:32 PM, JJR+weluvlucy.com wrote:
Hello to the list,
Has anyone ever built a secondary coil without a coil-form. Wouldn't air be the ideal coil-form because it has a dielectric constant of 1? And, how would one wind a secondary of lets say 20 gauge wire with an end result of no plastic, paper, wood, etc. coil-form? Is it possible to wind the coil then remove the core that it was wound on. Also, doesn't coating the coil with some form of urethane etc. add capacitance to the coil which is undesirable?
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla

JJR, To answer your first question Ricard Haul of TCBOR wound a small secondary with no coil form once and tested it. It evidently didn't perform much better than his other coils because he didn't make any more like it.

Roger
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla