Re: Corona Ring

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

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


It would depend on the potential to which the ring is charged as well as the
physical geometry of the ring itself.  For most of my designs I always use a
toroid that is at least twice the dia of the coilform.  2.5 to 4 times for
high power, high output potential designs.

Height to base of toroid usually 3 times the minor toroid diameter.  This
assumes you spacewind the last 5 turns of the sec coil ---- usually spaced
at twice the dia. of the sec. wire.  Last 2 turns spaced at 3 times the dia.
of the sec wire.

Dr. Resonance

 > Hi Luke,
 >
 > I just thought of something that may or may not apply here.  This is in
the
 > context of sailing boats and lightning protection from a metal mast.  A
rule
 > of thumb is that the mast provides a 45 degree cone of protection.  So I'm
 > wondering if this same 45 degree protection would apply for a corona ring.
 > That is, if the ring was 2 inches above the top turn it would need a
radius
 > 2 inches larger than the coil form.
 >
 >