Re: Capacitor test results
I agree with all you say in your excellent post. I think as
far as testing for real conditions, what you say is beyond dispute.
But I'm curious. It sounds as if this cap is failing a simple
go/nogo test let alone a real thrashing. I would have thought that at
this level, one could at least charge a cap and get a snapping
discharge. I wouldn't think for one microsecond that a cap failing
such a simple test would be suitable for anything other than the
So, it sounds as if it is failing with 120Hz charge/discharge. My
only question is : short, open, or what?
BTW, I still haven't done any comprehensive tests on my suspect
one yet, but I did fire a coil with it the other day and it was
working with no sign of failure. I have to get a major job out of the
way this weekend and will then attack the problem armed to the teeth
with test equipment.
One thing's for sure - I'm going to make darn sure the system tune
ensures secondary discharges occur before firing.