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Re: Fanciful spark-augmenter



Original poster: "Kennan C Herrick by way of Terry Fritz <twftesla-at-qwest-dot-net>" <kcha1-at-juno-dot-com>

It may well be that there's something *I'm* not understanding about this.
 But see my other posting of today on it (a better way to do it).

Yes, the gap would fire that soon, I suppose...but then, I'd merely cut
off the excitation until it was convenient to re-start it--as I do now
but after 7 ms or so.  Easy to cut that down to a couple of hundred us.

Ken Herrick

On Thu, 31 May 2001 12:55:22 -0600 "Tesla list" <tesla-at-pupman-dot-com>
writes:
> Original poster: "Scott Fulks by way of Terry Fritz 
> <twftesla-at-qwest-dot-net>" <darkthing-at-earthlink-dot-net>
> 
> Ken Herrick wrote:
> > there remained a question about the Q of my fanciful apparatus.
> > I made a quick measurement today:
> <snip>
> > With a .03 uF capacitor the Q was ~18 and with a .07 uF one, 16:
> > essentially the same.
> 
> I think there is something I am not understanding about this design. 
>  You
> mentioned a ring-up frequency of 140 kHz or so for your solid-state
> oscillator.  With a Q of 18 you'll reach maximum charge on the cap 
> after
> about 18 cycles, or 128 microseconds.  If your gap fires at every 
> maximum,
> you'll need a gap rate of nearly 7800 BPS!  Is it possible to quench 
> a gap
> this fast?
> 
> Regards,
> Scott Fulks (darkthing-at-earthlink-dot-net)
> 
> 
> 
> 
> 
> 
> 
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