[MikeK]

Originally Posted by Brian Philpott

. . . .Is there any way the red line from the CB/popout side of the coil can pick up 6volts? Has anyone had experience of intermittent shorting of this wire or a similar overheating of points?
Brian Philpott Camberley UK

Brian, YES!
Check for worn through spots on the continuous red lead from the coil to the popout where it loops through the firewall terminal box to get to the popout connection stud. It may be intermittently shorting to either of the terminal studs in the box. Both studs are always 6 volts. You may want to pull and replace that one entire wire.