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Re: Capacitance of a long thin rod (e.g. a spark) (fwd)
---------- Forwarded message ----------
Date: Fri, 17 Jul 1998 18:51:48 -0600
From: terryf-at-verinet-dot-com
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Capacitance of a long thin rod (e.g. a spark) (fwd)
At 10:09 AM 7/17/98 -0600, you wrote:
>From: "John H. Couture" <couturejh-at-worldnet.att-dot-net>
>To: Tesla List <tesla-at-pupman-dot-com>
>Subject: Re: Capacitance of a long thin rod (e.g. a spark) (fwd)
>
>
> Jim -
>
> If the capacitance of the TC secondary is changed by the streamers
>wouldn't this put the system out of tune and stop the streamers?
>
> Richard Hull said it was an extreme change implying much more than 5%. He
>did not say how he measured the frequencies with and without streamers under
>high voltage operating conditions.
>
> John Couture
>
>---------------------------------------------------
>
Hi John,
Once the system quenches, the secondary system can shift frequency
all it wants. There is no longer a need for the primary and secondary to be
in tune once the gap quench isolates them. A frequency shift would probably
help quenching?? In fact, if the coupling is high, primary to secondary
tuning becomes somewhat insensitive anyway. This is why they can just add a
turn to the primary without hurting the overall tuning. Coils with low
primary to secondry coupling are much more sensitive to tuning than higher K
coils systems.
Terry Fritz