Re: SSTC design procedure

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

Original poster: "Eastern Voltage Research Corporation" <dhmccauley-at-easternvoltageresearch-dot-com> 

Well, there is a bit of design involved.  For this particular ISSTC, I took
the following steps:

A.  I had never seen a six inch secondary before, and to be honest, I just
wanted to see what a six inch secondary would look like.  So i decided to
wind
       a six inch secondary.

B.  Next, I already had a 20" x 5" toroid which was what I planned on using.

C.  Now, I had a goal at what frequency I wanted to operate.  I chose 100kHz
and designed my six inch secondary (with 20" x 5") to be 100kHz determing
dimensions based on what wire size i had available etc....

D.  Now I worked on primary design.  I decided I wanted a 10 turn primary.
I then figured out a size of capacitor (primary) i would need if tapped at
8 turns.  This would give me plenty of turns in either direction to tune.
My capacitor size was a 0.100uF .   With the 0.33uF capacitors I had, actual
primary capacitor turned out to be 0.11uF at 12kV.

E.  Next, I just built it.

So, yes there is rhyme and reason to how i selected secondary and primary
components.


 > Thanks for your insights. I gather then that arbitrariness is still
 > very much in the foreground. Apart from the tuning requirement,
 > little else seems to be suggested in what you wrote. For example, no
 > reason is given to choose particular inductances, a particular coil
 > length etc.
 >
 > Thanks for replying. I appreciate it.
 >
 > Malcolm
 >
 >
 >
 >
 >