Re: Inductance Charged Coil

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

Original poster: tesla <tesla-at-paradise-dot-net.nz> 

Thanks Team
No not quite,
My question and I think Rob answered it really refers to what is a tesla
coil in thems of an oscillating primary as distinct from an induction coil
or flyback.

In the coil I am curiois about all the primary physics is the same except
the field of the primary inductor is charged by the PSU and as it collapses
it charges the primary C. The switching arrangements in such a coil would be
significantly more difficult and a SG would not work.

Best
Ted L in NZ
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, February 06, 2004 2:03 PM
Subject: Re: Inductance Charged Coil


 > Original poster: robert & june heidlebaugh <rheidlebaugh-at-desertgate-dot-com>
 >
 > My question: Are you talking about a "kicker coil" tesla. ? Made with a TC
 > secondary and one turn primary powered with a coil ( such as an old
washing
 > machine solinoid) coil  in  series with the primary and two capacitors
with
 > a spark gap to connect the capacitors . The power is 117v AC with no
 > transformer. The circuit is a series resonant circuit tuned to the AC and
 > the spark gap is adjusted to just over the line voltage. As the circuit
 > resonates producing several Kv the spark gap fires pulsing the primary to
 > produce 50-80 Kv out of the secondary. Invented by tesla.  For DC use the
 > coil has an added set of buzzer points added to pulse the input. I don't
 > know if this what you are talking about, but they work well and are sold
by
 > many school supplies. ( Edmond scientific etc.) My unit puts out about 100
 > Kv at the most. My commercial unit puts out 50 Kv max , but is safer to
use
 > in a class room. The only catch is tuning the circuit to resonance. large
 > coil and large capacitor for 50 or 60 Hz. The secondary dosen't mater.
 >     Robert   H
 > --
 >
 >
 >  > From: "Tesla list" <tesla-at-pupman-dot-com>
 >  > Date: Wed, 04 Feb 2004 18:28:10 -0700
 >  > To: tesla-at-pupman-dot-com
 >  > Subject: Re: Inductance Charged Coil
 >  > Resent-From: tesla-at-pupman-dot-com
 >  > Resent-Date: Wed, 4 Feb 2004 18:36:15 -0700
 >  >
 >  > Original poster: Ed Phillips <evp-at-pacbell-dot-net>
 >  >
 >  > Tesla list wrote:
 >  >>
 >  >> Original poster: tesla <tesla-at-paradise-dot-net.nz>
 >  >>
 >  >> Team
 >  >> Does anybody know if a disruptive coil has ever been successfully made
in
 >  >> which the primary inductor is charged first (lots of I liitle V) to
store
 >  >> 0.5LI^2 joules. Charging stopped and the collapsing field then
produces
 > high
 >  >> volts and off you go.
 >  >>
 >  >> Not sure why such a design might be made but I imagine in priniple it
 > is the
 >  >> mirror of charging the C into the L
 >  >> Tnx
 >  >> Ted L in NZ
 >  >
 >  > That's the way they do work; the interruptor/vibrator or whatever opens
 >  > the primary circuit after a current is flowing and the resultant high
 >  > peak voltage is transformed into an even higher one by the turns ratio
 >  > of the secondary/primary!  A capacitor is often placed across the
 >  > interruptor to prevent the voltage from rising so high that arcing
 >  > occurs and the current isn't interrupted.
 >  >
 >  > Ed
 >  >
 >  >
 >
 >
 >