Re: A Little more than general questions lV

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

Original poster: "BunnyKiller by way of Terry Fritz <twftesla-at-uswest-dot-net>" <bigfoo39-at-telocity-dot-com>

Tesla list wrote:

> Original poster: "Wade B AndB Anderson by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <nabedaw-at-juno-dot-com>
>
> Hi People-

answers are after each question...

>
>
> My next question is going to involve the actual coupling between the
> primary and secondary of the TC.
>
> I've noted that some prefer to leave the secondary abit adjustable, now
> what advantages or disadvantages come with a loose or tight coupling???

adjustable coupling is an OK thing but not too hi on the general priorities
of most coilers, there is a
point in which coupling adjustments can increase the output by a few extra
percent.

>
>
> Has anyone tried to place the primary inside of the secondary??? And if
> so with what affects???
>

really big coils can use internal primaries, but they are big enuf to
access easily. on smaller coils its
not too convienent to have the primary inside. the possibility of intenal
secondary arcing is increased
with an internal primary.

>
> What would happen if a person were to elevate the TC to say (an ambiguous
> number) 25 or 50 feet off the ground???  This would increase the
> capacitance of the secondary??? Yes??? Change the resonant frequency???
> Yes???

no idea on this one.

>
>
> Since this Tesla Coil thing is new to me, I mean that I've heard about it
> for years, but not until recently have I wanted to build one.
>
> How much current is flowing in the arc of the spark gap??? Best
> guesstimations are fine. And the same with the streamers off the
> toriod???
>

as you know somewhat already... current is relational to the voltage BUT it
is also relational to the
amount of time it occurs in. in a spark gap situation the current can
exceed 25000 amps during that short
burst of energy. as far as the streamers, an average sized coil will
produce milliamps of current in the
output but it is still considered powerful due to the increased voltage


>
> Are we talkin about a major gain??? High voltages usually yield small
> currents. Just curious.
>
> Picking a value for the capacitance of the primary tank circuit is kinda
> bothering me. This value is going to play a very big roll at where this
> device resonants........yes????
>

the value of the cap is determined by the transformer you plan to use. lets
say you plan to use a 15KV
30mA NST... the value of the cap will be lower than a cap used for a 14400V
piggie. Its a matter of
current supply on the decondary side of the transformer. The more current
available on the secondary side,
the bigger the cap can be.

>
> What are the advantages or disadvantages whae running at higher or lower
> frequencies???
>

ive asked the same question...


>
> I know these ae some rather indepth questions guys, but I'd appreciate if
> some of you would take the time to answer them the best that you can.  :)
>
> Aside from the obvious curiousity that this device brings, and the utter
> fun of assembly the project, is anyone conducting any serious tests with
> the TC???
>
> Terry- I would lke to thank you for turning me on to this group, everyone
> has been very helpful.
>
> John- I just downloaded the zip file......gonna see if that
> works......thanks.
>
> Anyway,       Wade

Scot D