On Wed, 24 Sep 2008 07:45:10 -0700, Jim Thompson
wrote:

[snip]

Doesn't take much to make a CD Ignition, see....

http://analog-innovations.com/SED/CD-Ignition-Basic.pdf

Thanks. What is the theory of operation? What I have now, connects
one side of the coil to the battery and the other side to the ignition
module. In that circuit, D3 D2 would stay forward biased if the coil
goes to B+.

This circuit is supposed to dump a largish negative spike to the coil?

What kind of voltage does the transistor have to stand off?
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