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Re: Repost of :Strange NSTs (was Re: Found it ! :o(( ) (fwd)

On Fri, 16 Apr 1999 21:14:48 -0600 (MDT), Tesla List wrote:

> Original Poster: Tesla List <mod1-at-pupman-dot-com>
> 
> 
> 
> ---------- Forwarded message ----------
> Date: Fri, 16 Apr 1999 10:36:38 EDT
> From: FutureT-at-aol-dot-com
> To: tesla-at-pupman-dot-com
> Subject: Re: Repost of :Strange NSTs (was Re: Found it ! :o(( ) (fwd)
> 
> In a message dated 99-04-16 05:01:03 EDT, you write:
> 
> << > 
> > Im glad this clarification has been made, it was my understanding
> > that in a series resonant circuit which is almost always used in a
tesla
> > primary,the voltage rise is dependent on the q of the coil which in the

> > case of a primary is almost entirely abscent of a voltage rise effect
> > because of the comparative low inductance. 
> 
> Harvey,
> 
> ?
> The primary doesn't have much effect on the resonant charging, so
> the coil Q doesn't have much bearing either during charging.  Later
> during RF oscillation (after the gap fires), the primary dynamic Q is
> limited by both the spark gap, and the damped nature of the oscillation.
> 
> 
>  >If  understand correctly 
> > (please correct me if wrong) the only techniques used to increase the 
> > input voltage to a tesla primary are that of resonant charging where a 
> > comparatively low capacity  is put in shunt or parallel to secondary of

> > hi voltage xformer. 
> 
> Yes, resonant charging can be used to raise the primary input voltage,
> but a larger cap and lower voltage can give the same bang size, and
> the same spark output with less transformer and cap stresses.
> 
> >In the moment of arcing the reverse side of the primary
> > cap then comes into contact with primary coil forming a tank or
parallel
> > res. 
> > circuit (with a higher impedance) 
> 
> High impedance across the tank, low impedance within the tank.
> 
> >The arc however represents a short to
> > the xformer secondary which in a stationary gap might cause problems.
> 
> Yes, sort of , because a static gap might fire too soon.  But when the
> gap fires, the xfrmer or ballast current limiting kicks in and limits the
> current, so the xfrmer is not really direct-shorted.
> 
> > By employing a rotary gap at 120 bps the arc can be made to occur 
> > precisely when the input amperage of the xformer is near zero. This 
> > negates the problem of appearing as a short to the high voltage
secondary.
> 
> Yes.
> 
> >      Does not the above scenario simply represent the most efficient
> > way of allowing the cap to be charged by the source xformer and 
> > then to be discharged in the high frequency osscillation in perfect
timing?
> > HDN
> 
> Using a larger than resonant sized (LTRS) cap, the gap may still fire
> near the ac zero crossing perhaps?  Interesting question.
> 
> I'm not sure if I answered your questions?
> 
> John Freau
>  
> 
Great reply John; I'm glad someone like you took the time to
answer these questions which means that I didnt waste my 
time asking them. In replying I wondered whether to delete
and snip the unnecessary repeated questions, but then I 
realized that perhaps someone else just like myself would be 
wondering about the same things, in which case the repetition
is entirely justified. In fact the tesla list contains language
that is hard for the newcomer,including myself.
     I notice that the volume of posts are hard to deal with:
that even though people ask some really dumb questions,
these always seem to be dealt with in patience.
     I noticed that J Coutre had a book publicized by someone
on the list in the last couple of days, perhaps he should have 
supplied the ways and means for me to purchase it. This was
not supplied.
     I also noted that Richard Hull from Richmond Va has made 
a must see video on Fusors. I saw this info on Keelynet Archives recently
reorganized. Since both of these esteemed progenitors seem to 
be on this list perhaps they could reply off list to me for them to recieve

their monetary rewards for research.I am especially interested
in TCBOR commentary of Colorado Spring Notes.
     I am somewhat embarrassed by the the fact that
such a neophyte as myself might be replying to someone
who has himself wrote a book or two. I see your good replies 
often, have you wrote any books on TC?
     Again thanx for the reply HDN.




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