Re: 3 probably awful beginners questions ;-)

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

Original poster: "Barton B. Anderson by way of Terry Fritz <teslalist-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>

Hi Christoph,

Just wanted to note your measured frequency again. I ran Fantc on your
given specs. Assuming I interpreted the specs at least close, here's a
resonance analysis from Fantc: Note Fres of the secondary is 282kHz
(about 100kHz higher than your measurement). Either my inputs are
grossly incorrect OR your measurement is way off.

Running F A N T C using core functions of G E O T C version: 2.2
Computing ..... please wait

Secondary Resonant Frequency: 282.07 kHz

Energy Storage Inductance (Lee): 14.95 mH
Effective Series Inductance (Les): 15.67 mH
Low Frequency Inductance (Ldc): 16.76 mH
Energy Storage Capacitance (Cee): 19.36 pF
Effective Shunt Capacitance (Ces): 20.61 pF
Low Frequency Capacitance (Cdc): 30.21 pF
Total Topload Capacitance (Ctop): 16.24 pF

Run CompleteTime elapsed: 26.2 secs

Also, here is a Fantc generated representation of the coil as well as a
couple other gif images of the inputs I used (in inches).
These are just images of the Fantc so I could show you my inputs easily
and let you decide if something is grossly incorrect.

http://www.classictesla-dot-com/temp/cb1.gif
http://www.classictesla-dot-com/temp/cb2.gif
http://www.classictesla-dot-com/temp/cb3.gif

Fantc is also available for your use. It is pc intensive and runs best
under IE6 browsers or NS4 browsers. The Opera's, AOL's, and new NS6 and
7 browsers have many difficulty's with the intesity of the program. Note
I put your secondary 20" off the ground and the inner turn of the
primary is 1.5" below the secondary. Also, Fantc uses radius's for the
coil inputs.

http://www.classictesla-dot-com/fantc/fantc.html

Take care,
Bart