Ignition Book

[genesis!mvarc!an.bradford.ma.us!adh]

	From: Bruce Bowling <bowling at cebaf.gov>
	
	MSD ignitions are also CD, but the added multiple spark is something
	the others (like Jacobs) do not have.  They both put about 450 volts
	across the coil, using a DC-to-DC converter.  MSD also does not
	"pot" their boxes.

the multiple spark is also mostly marketing jazz -- someone on the net
reverse-engineered the msd box and discovered that the sparks count
down as rpm increases, until it's down to just one spark above ~3500rpm.

_______________________________________________________________________________
Andrew Hay
	    LIFE, n: A phenomenon that resists the second law of thermodynamics
adh at an.bradford.ma.us						---Schroedinger