Re: [TCML] Frequencies

[DC Cox <resonance@xxxxxxxxxxxx>]

The frequency of the pulses has nothing to do with the voltage
multiplication of a coil.

It's the inductance ratio that produces the voltage transformation and the
rate of change of current across this inductance.  While it's true longer
sparks are made with more pulses per second, the actual potential difference
is dependent only on the inductance ratio of the two inductors, primary and
secondary.

Specifically,  Vsec = 70% x Vpri x SQR Ls/Lp for most Tesla
transformers, With an iron core coil, such as the automotive ignition type
coil, the output potential is dependent on the turns ratio of the sec and
pri.  It's usually around 98% efficient for a good oil insulation car coil
such as an Accel Supercoil.

Dr. Resonance




On Sat, Oct 10, 2009 at 11:52 AM, Rhys Sage <rhys_sage@xxxxxxxxx> wrote:

> Has anybody any idea of the frequency of pulses one should put into a coil
> to produce 25 and 50KV?
>
> I've been looking into the 555 circuit that I started to build and have
> found add-on after add-on to make it work better and to protect it. So much
> so that it's very off-putting. Thus I'm thinking very much of junking the
> whole 555 idea as barmy and going for a pair of interrupters, a pair of
> optical relays and an electric motor with a spinning disk with holes punched
> in it. It's simple and easier to construct.
>
> Rhys Sage
>
>
>
> SagePhotoWorld.com
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