Re: Primary Resonant Frequency question . . .

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

Original poster: "Sean Taylor by way of Terry Fritz <twftesla-at-qwest-dot-net>" <taylorss-at-rose-hulman.edu>

> My question, is that I'm using a SRSG with a LTR capacitor of 0.0275uF
> instead of the 0.0106uF.  Does this change my resonant frequency
> calculations at all????

YES!! Your tank cap and inductance determine the primary resonance.  With
such a large cap (compared to before), your resonance will drop quite a bit,
so the inductance will have to lowered (less turns) to compensate - good
news for you since with the 0.0106 uF cap, you wouldn't have been able to
tune it.

> Also, other than changing my topload, re-doing my primary, is there any
> other way to increase the resonant frequency of my secondary assembly???

The ONLY way to change your secondary's resonance (other than changing it's
physical characteristics, i.e. # of turns, diameter, length, etc.) is by
changing the topload (well, you could put a core in it, but that would be
bad for HV . . . ).  Once again, more C (bigger topload) will give you a
lower resonant freq.  The trick is matching the two resonant freqs with the
primary, cap, and topload that you have available.  :-)

Good luck!
Sean Taylor