Just to avoid any possible confusion, the arrow on the right side of TreeSeeker's picture does point to the off-white, unglazed ceramic ballast resistor ... and I can see it's a 'four-pin' resistor. (Width tells, 'two-pin' resistor would be narrower.)
The thing immediately to the left of the ballast resistor is the ignition module, roughly 3x5 inches in size. The round 'cap' on a flat 'diamond' is an old-school transistor. The electrical connector is in the upper left of the module box.
The module and resistor isn't always grouped that closely together.
