Re: Energy stored in primary again

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

Original poster: "robert & june heidlebaugh by way of Terry Fritz <teslalist-at-qwest-dot-net>" <rheidlebaugh-at-desertgate-dot-com>

If you select a kicker coil and your capacitors with a 1 0r 2 turn primary
to be 60 Hz resonant it works well with no buzzer points.
   Robert  H
-- 


 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > Date: Mon, 10 Mar 2003 18:03:24 -0700
 > To: tesla-at-pupman-dot-com
 > Subject: Re: Energy stored in primary again
 > Resent-From: tesla-at-pupman-dot-com
 > Resent-Date: Mon, 10 Mar 2003 20:10:17 -0700
 >
 > Original poster: "Antonio Carlos M. de Queiroz by way of Terry Fritz
 > <teslalist-at-qwest-dot-net>" <acmq-at-compuland-dot-com.br>
 >
 > Tesla list wrote:
 >>
 >> Original poster: "Jolyon Vater Cox by way of Terry Fritz
 > <teslalist-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>
 >>
 >> On the subject of inductive storage
 >> isn't this relevant  both to "buzzer-testing" of TCs
 >> and to "kicker-coils"
 >> where in both instances the spark gap is replaced by buzzer contacts
 >> and the high voltage power transformer by an iron-cored choke?
 >
 > If I remember correctly the configuration of a kicker coil power
 > supply, it consists of a relatively low-voltage supply connected
 > to a large coil, that forms an electromagnet that opens a switch
 > in series with the circuit. So far exactly as in the primary circuit of
 > an induction coil. But in this case, there is a primary capacitor
 > of a Tesla coil in parallel with the switch. The system is designed
 > so the energy in the kicker coil is transferred to this capacitor,
 > and the Tesla coil operates when the switch closes (or almost) again,
 > when the current in the kicker coil decreases enough.
 > If the current in the gap (that is also the switch of the kicker
 > coil) will be interrupted (quenched) at one of the notches of the
 > Tesla coil operating cycle, depends on the speed of its closure.
 > So, the system is a Tesla coil, not an induction coil. The kicker
 > coil is essentially an induction coil without secondary coil, used
 > to charge the primary capacitor.
 >
 >> Has anyone tried using a blocking oscillator or similar to replace the
 >> electromechanical switch
 >> for a truly electronic kicker-coil?
 >
 > Possible, but the switch will have to sustain the full primary
 > voltage of the Tesla coil, and with two polarities. It's easier
 > to replace the kicker coil by an induction coil.
 >
 >> Also, aren't the above devices examples of "real" Tesla coils rather than
 >> simple
 >> induction coils?
 >
 > Yes. A simplified version of an induction coil powering a Tesla coil.
 >
 > Antonio Carlos M. de Queiroz
 >
 >