Mike Romain wrote:

>>
> Ok, so now you have me curious.
>
> Just how does this condenser affect RF if it doesn't mellow out (buffer)
> the arc from the points?


It does. Yes, the charging circuit will WORK without the cap, but the
contacts on the relay will erode much faster than when the cap is
present. Lots of RFI is a sign that the points are arcing, eliminating
or reducing the arcing will make the contact points last longer. No
"ifs, ands, or buts."