Hi Tom
On Thu, 6 Mar 2003 10:09:16 -0500 "Tom Rauch" <w8ji@contesting.com>
writes:
<snip>
It all sounded good until you got to here... even though it is way off
topic and...
I'm glad that someone recalls when sparks were made in the old way!...
it begs correcting.
> Many people think, for example, the peak ignition voltage in an
ignition
> system is set by the turns ratio in the ignition coil. That isn't true
at
> all, the peak voltage is many times the actual turns ratio would
produce.
Wrong.
The turns ratio works just as expected in that application. The
secondary voltage is equal to the primary voltage multiplied by the turns
ratio.
Note: the primary voltage is not always equal to the battery (or
system) voltage. Do I have to explain the whole process here or... just
let this comment initiate a worldwide ringing? :-)
> Remove the capacitor in an old-style ignition, and watch the voltage
> drop!
Only because the points, which are not opened instantaneously, will
arc (gosh, there's that arcing again...) thereby stealing the stored
ignition coil energy out of the primary instead allowing it to exit the
secondary where it can help make smog.
73 & Good evening,
Marv WC6W
*
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