A Terry Piranha Primary

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Jim Mora" <jmora@xxxxxxxxxxx>

Hi Terry and All,

I was surprised to see that Terrry's primary is a pancake. The few 
solid state coils I have seen in person had a deep primary conical 
primary. I guess I'm asking what is the practical limit to the 
coupling; and, is there any benefit to using a conical coil in a IGBT 
driven coil?

Thanks Much Terry and all.

PS. I have sent a request to my off shore contact to see if he can 
source the IGBT's