That is interesting I've been trying to find out if you can feed a pole pig
with a 60 Hertz d/c Square wave with adjustable duty cycle or in other
words a pwm. Which would think that it would work for current limiting
or??
On Tue, Sep 18, 2018, 1:46 PM jimlux <jimlux@xxxxxxxxxxxxx> wrote:
> I'm getting ready to start experimenting with triggered spark gaps for a
> TC - all the timing benefits of a rotary gap, but without spinning
> blades of death.
>
> What I'd love to find, and I'm hoping the TCML hive-mind can help, is an
> off the shelf "electronic ignition" module - not capacitive discharge,
> but something that basically is the "points replacement" that I can
> drive with an optical link (for HV isolation).
>
> The idea is to use a 12V battery, an electronic ignition, and a
> conventional ignition coil as a robust trigger pulse generator for the
> spark gap.
>
> Something fancy like the MSD, which generates multiple sparks, isn't
> what I want.. I want just the one pulse into the coil.
>
> Back in the day, there were "points replacement" modules - maybe
> something I can order as part of a HEI?
> (after all there's the famous GMHEICSLR contest, which used the *coil*
> of a HEI as the basis for a tesla coil of sorts)
>
> Cheap is good. The ignition coils are $12 - I'm not wild about spending
> $100 on what is basically a HV transistor and some biasing resistors and
> capacitors.
>
> (No, I don't want to build one from scratch.. been there, done that)
>
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