Paul -

I've been lurking on your CDI info flow lately, and chatted with
another EE friend about it.  He was interested enough to look up specs
on the chips you're using, and find alternative designs.  He sent me
this to read:
    http://www.molla.org/DIY-CDI/SC-DIY-CDI-article-hires.pdf

I certainly don't want to devalue your effort thus far - in fact just
the opposite.  I am personally getting some interesting design
explanations by reading the article, and hope that you might gain some
useful info as well.  In essence, the article may prevent you (us)
from reinventing the wheel - something you often preach re: cooling
designs.

If you want to group to read the article, and if it doesn't simply
regurgitate stuff you already posted, feel free to post the link.

-Vince Orton

That is the Aussie system I have been talking about.
You must have missed it. Here is one of the early
messages on the subject.

Paul Lamar

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-------- Original Message --------
Subject: Aussie system IS WORKING
Date: Fri, 18 Jun 2010 19:54:07 -0700
From: Rotary Engine <rotaryeng@earthlink.net>
To: AAA Put this in the To box <rotaryeng@earthlink.net>



 Got the Aussie system set up on the bench. The power supply
 does
 not appear to be oscillating so far. No current drain :(

 Paul Lamar


Paul

On the Aussie ign there is probably a 2nd connection
for +12V switched that needs to be powered in addition to the main + input.

regards Robert

I had the trigger signal connected to the wrong terminals.
The PS osc does not run when the engine is stopped.

This thing is AWESOME!!!!. My wimpy 12 volt power supply dropped
off to seven volts at 3 amps and still the spark is jumping
1/4 of an inch at 250 sparks per second or 15,000 RPM for
a one rotor. 7500 RPM for a two rotor It starts to miss
about 16,200 RPM for a one rotor but that could be
the power supply. Only 21 watts input power. The stock 2nd
gen coil is running cool as a cucumber.

I have a USB router with a 2 foot cable on my notebook
computer in close proximity  and Windows is going crazy thinking
I am plugging and un plugging  USB devices. Linux is too smart
for that :)

I think Aden Lindsay sent this to me from Perth years ago
and I am just getting around to testing it. Thank you Aden.
This is the system we will copy. Only two for each spark plug
might work instead of four I had first thought.

Next thing is to get the bigger power supply hooked up.

Paul Lamar

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