Re: Disappointing Results

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jon Rosenstiel by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jonr-at-pacbell-dot-net>

Hi Dave,

I had good results using a 2500pF, (0.0025mF), doorknob cap with an igintion
coil powered TC.

Jon

From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, March 10, 2002 7:06 PM
Subject: Disappointing Results


> Original poster: "David Kyle by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<dave-at-kyleusa-dot-com>
>
>
> I fired up the desktop model T spark coil powered coil with very
disappointing
> results. It appears that the pulse caps I am using simply short out the
spark
> coil as I get no spark across my spark gap even when it is nearly closed.
So
> here is the question: is it my choice of capacitor or have I selected too
high
> a capacitance value for such a low power coil.
>
>
>
> I know very little about the pulse caps I am using other than they are
rated at
> .05uf at 10KVDC. I put 5 in series to yield a .01uf at 50KVDC. The cap
does
> measure out at the correct value and does not have measurable resistance
with a
> multi-meter. There is no question that when the cap is put across the coil
it
> simply shorts it out.
>
>
>
> The spark coil might be good for about one milliamp but I had not expected
.01
> would short it out. What value might be more appropriate? Would a doorknob
cap
> be a better solution for a very low power coil?
>
>
>
> Dave
>
>
>
> =========================================
> Dave Kyle
> Austin, TX USA
> Email: dave-at-kyleusa-dot-com
>
>
>
>
>
>