Alan,
Re. the target dropper coils - take care with those, AIR* Eight Ball Deluxe has them driven on the 'extended' side of the solenoid extender, and if so the two-diode arrangement is necessary, as with M & M Pac-Man.
* I had a (rare) private service call once, from work to an EBD we'd sold on. The outhole kicker wasn't working, but one of the dropper coils was pulsing instead. It was paired with the outhole coil
Re. the target dropper coils - take care with those, AIR* Eight Ball Deluxe has them driven on the 'extended' side of the solenoid extender, and if so the two-diode arrangement is necessary, as with M & M Pac-Man.
* I had a (rare) private service call once, from work to an EBD we'd sold on. The outhole kicker wasn't working, but one of the dropper coils was pulsing instead. It was paired with the outhole coil