Re: [EE]: Flame rectification

This was a standard trick on two cylinder motor bikes.


On Mon, 22 Dec 2025 at 01:59, Harold Hallikainen <[email protected]>
wrote:

> Interesting! So the 800 ohms is the ignition coil resistance, and the left
> or right spark gaps are in series.
>
> Harold
>
>
> On Sun, December 21, 2025 6:41 pm, Bob Blick wrote:
> > Followup to the ignition on a gas cooktop. Four burners, the left two
> > have 800 ohms between ignition electrodes, same with the right burners.
> > But no connection between left and right electrodes, and no connection to
> > ground. My thought is that there are two ignition coils, one for left,
> > one for right. The coils have one HV wire("positive") for a front burner,
> > the other wire("negative") for a rear burner. Ground is not part of the
> > coils, and is only used as a path for the spark current between two
> > electrodes. Both coils are fired at the same time, driving all four spark
> > electrodes. And if any electrode is shorted to ground, it only increases
> > the spark for it's mate.
> >
> > Clever. Reminds me a bit of the ignition coil on my Miata MX-5, where
> > there are two ignition coil windings in the same package, but driving
> > four spark plugs. In this case alternating between the two windings,
> > driving two spark plugs at a time. I had a Mustang with a similar setup,
> > and it actually had half the spark plugs designated positive and the
> > others negative, with different part numbers. I replaced them with plugs
> > that had iridium on both the center and ground electrode. --
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>
>
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