Pioneering the Applications of Interphasal Resonances
http://tech.groups.yahoo.com/group/teslafy/
- Forwarded Message - From: Harvey Norris To:
Tesla Coil Mailing List Sent: Sunday, February 10, 2019,
4:14:56 PM ESTSubject: Re: [TCML] Tesla help
Antonio Queiroz wrote; Resonance happens when you associate
capacitors and inductors as if they were resistors so the resulting
reactance goes to zero (simplest case, L in series with C) or to
infinity (simplest case L and C in parallel). . These descriptions are not
all inclusive where for multilayered coils because of internal capacity between
windings opposing cancelling reactances in series will not completely negate
those reactive effects in opposition; Radio Engineering :F.E. Terman;
Properties of Resonant Circuits "It is to be noted that the apparent Q of a
coil is decreased by self capacity." As a result of this cancelling reactances
to the source voltage can be demonstrated; but their Ohms law conduction at
series resonance does not occur, which can be measured on multilayered coils as
a % of decrease of value from the mathematically formulated ideal q factor
expressed as X(L)/R. Additionally the (apparent) series resonant rise of
voltage with respect to it's input voltage will be smaller then that predicted
from the ideal Q factor, not delimited by internal capacity of that
measurement. Additionally the reactance towards the source for parallel
resonance cannot be infinity, otherwise the resonant rise of amperage from the
source to the load could not be measured as a ratio to begin with. Perhaps you
are speaking with specific air core examples which may be distantly related to
analogies of directly line coupled driven examples. Sincerely Harvey D Norris
Pioneering the Applications of Interphasal Resonances
http://tech.groups.yahoo.com/group/teslafy/
On Thursday, February 7, 2019, 5:46:32 PM EST, Steve White
wrote:
Hello Marcus,
Its good that you want to know the theory and equations behind the tesla coil.
After you learn the required equations, save yourself some trouble and just use
JAVATC. All of those calculations are rolled up in that design program. It also
takes into account a lot of the more obscure effects that will also affect the
performance that you may not be aware of. If you enter all of the parameters
accurately, it is surprisingly accurate, at least it was so for my coil. The
primary tap point (11.5 turns) predicted for my coil with JAVATC was within 1/4
turn of the optimum tap point. That is some good modeling.
Steve White
Cedar Rapids, Iowa
- Original Message -
From: "Anthony Dresden"
To: te...@pupman.com
Sent: Wednesday, February 6, 2019 10:05:15 PM
Subject: [TCML] Tesla help
First off, this is amazing thank you so much for providing this site.
I am having some difficulty with resonance formula. I can solve for
Xc(because frequency,and capacity are given numbers) but how do I get
inductive reactance figures, I have tried formulas that involve the number
of coils, gauge of wire, resistance, frequency,ect. Could you please she'd
some light on the subject. As I don't have the instraments to collect this
data.
Thank you much.
Marcus Anthony.
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