Trigger Signal: MSD 6A, 7AL ??

[Paul Ko]

Does anyone know how the trigger signal for the MSD ignition boxes look 
like?  This is thru the points wire (white).  I assume it is a rising 
signal because points output a rising signal and also the testing 
procedure for the MSD is to ground and release the white wire, where the 
trigger is upon the release from ground.

Thanks in advance,

Paul Ko
pko at mindspring.com
http://www.mindspring.com/~pko
 
Formula SAE UCDavis Team Captain 
http://mae.engr.ucdavis.edu/~fsae