Help - Pickup Circuit

[Bruce Plecan]

At Radio Shack they have a series of books called something likt Mini
Engineers Guide to ----- ----.  In one of them, they mention opto-couplers.
Use one of these of off the neg side of the coil.  No RF to deal with that
way
Bruce


> >I have seen some of the discussions on the subject of Inductive pickups
for
> >spark.
> >I have a system where the signal from a inductive pickup is fed into the
> >mic input of a pc, to count the sparks.
> >The problem is that the software gets confused, for every spark puls
> >consists of a number of pulses that is picked up.
> >Can anybody please supply me with a circuit to convert the input to one
> >single spike per spark ??
> >Thanks Michael.