Re: Ignition Coil

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

Original poster: "Daniel Barrett by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dbarrett-at-clearcube-dot-com>

    These coils are designed for use at higher frequencies, or at least edge
rates, than 60 Hz. With a larger cap you are just dumping more power into
the coil, so you get more power out. The efficiency is pretty bad though at
60 Hz- most of your energy is going to warming up the coil.
db


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, September 05, 2001 9:18 AM
Subject: Re: Ignition Coil


> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Cydesho-at-aol-dot-com>
>
> I was curious about some experiences that I've had with the ignition
> coil-dimmer-capacitor circuit. All of the text that I've ever read has
said
> that a 1 or 2 uF motor run cap is all that is needed. Whenever I have used
a
> cap of this size, the output from the coil is in the form of blue sparks.
It
> seems that there must be an extremely small amount of current coming out
of
> the coil. The only way I've ever gotten an output that resembles the
output
> from an NST is with 34uF cap. This had held true for all of the various
> ignition coils and dimmers that I've used.  I have tried a wide range of
> values for the capacitor. The output starts to be capable of actually
arcing
> instead just sparking with a capacitor rated at 15uF. Does anyone have any
> idea why this would be happening? I can't find any problems with the way
I've
> wired it. There's not a whole lot that can go wrong witth the wiring,
there
> are only three components.
>                                                  Justin
>
>
>