'coil receives current, dc only.'
that's what I thought, but then how does it boost it to the purported 20,000 volts?
" The current comes from the positive terminal, thru the coil, and to ground thru the points. The points open and a spark is produced that goes out the secondary (thick center wire)"
understood
"You can have ignition on, have distributor cap off. then open and close the points with a screwdriver. This will make the coil spark. Check by holding wire 1/4 inch from block "
which wire?
thx
S