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Re: Fw: frequency (fwd)

Bob,

The frequency of the secondary (and primary) is for all practical purposes
dependent only upon their inductance, self-capacitance, and added capacitance -
in the case of the primary, your main capacitor and in the secondary, your top
load. Altering the mains frequency (and the capacitor size accordingly) and
retuning the coil will only change the break rate of the spark gap - instead of
120bps you will get 800bps (If you were using a sync rotary you would need to
power the motor off the same 400Hz too). The power supply frequenccy should
never
havve any effect on, and certainly not reach the secondary - this is a
potentially lethal situation if a streamer with 60Hz or even 400Hz superimposed
in it hits you!

Alex Crow


Tesla List wrote:

> Original Poster: Robert Volk <smrtmny2-at-earthlink-dot-net>
>
> Going throught the book of Tesla patents, I recall reference to several
> Very high frequency generators, so it appears to me that he used higher
> than 60 HZ input to his coils, at least in some of his work.
>
> What is the effect of putting a 400 hz 120 mA into a coil tank circuit,
> as opposed to the more standard 60 hz 120 mA? Does it result in a 7 fold
> increase in secondary frequency? Has anyone attempted this and if so ,
> what were your results?
>
> Sparkin'
> Bob Volk
>
> >
> >
> > Dear Marius et al,
> >
> >   Hmmm...your question is interesting and somewhat akin to what I am
seeking
> > to understand; however my aim is NOT to eliminate the spark gap as it
is the
> > source of the damped wave (DW) oscillations I feel are important in my
work.
> >
> >   I am working with electromedical devices and am attempting to understand
> > the relationship between the frequency of the incoming voltage/current
> >  typically 60 cps) with regard to the charging of the capacitor and the
> > breaks per second (bps) of the spark gap.  It appears that the maximum bps
> > with a static gap are limited to 120.
> >
> >   This limit doesn't appear to apply to a rotary gap.  My questions:  How
> > does the use of a rotary gap effect the charging of the capacitor, the
break
> > down of the gap and the power transfer across the gap, when subject to the
> > typical incoming frequency?  Aren't we sacrificing power by increasing the
> > bps?  Is it possible, say by using a higher frequency input, to
increase the
> > charge to the capacitor, thereby increasing the power across the gap,
> > resulting in greater effectiveness of the system?
> >
> >   I'm looking at the possibility of using a 400cps input in an attempt to
> > realize greater efficiency from a rotary gap system; any input/feedback is
> > welcomed.
> >
> >
> >   Thanx and best regards,
> >                                                   Trent