RE: Inverse conical primary

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

Original poster: "Lau, Gary" <gary.lau-at-hp-dot-com> 

There is no reason to use a conical primary at all.  The steeper the
angle, the greater the coupling will be (assuming the height of the
innermost turn is a constant).  But with coupling, more is not
necessarily better, and it's easy to have too much.  A flat primary will
give adequate coupling if the secondary is sufficiently close -
generally when the plane of the primary is even with the lowermost
secondary turn.

Gary Lau
MA, USA

 >Original poster: "levi Mccann" <levimccann-at-hotmail-dot-com>
 >
 >I am a newbie, and I like to do my homework (probably overthoroughly).
I
 >came across a problem however.  I am building a conical primary for my
coil
 >and have researched proper angles for this.  Right now I cut my
material at
 >45 degrees, but everywhere I look, people are saying don't go over a 30

 >degree incline.
 >
 >Can somebody shed some light on this.  I do not want to go forward and
 >mount my primary wire if I need a lesser slope.  What is a good angle
and
 >what determines this factor????
 >
 >Any help or suggestions would be great.
 >
 >--Levi......Keep throwing electricity!