commonly known as 'shower of sparks' this buzzer type ignition coil is connected via the distributor and spark plug leads to generate a continuous spark while crank starting the Cheetah aero engine. The type of ignition coil fitted to the Cheetah engine fitted to an Avro Anson, Parts stock unused.electronic ignition coil with high tension outlet and set of adjustable breaker points and connectors. New in original box.D-5271BA Adjust to 2.5 volts with standard secondary load for use on 12 volt system. On Box 'Booster Coil Type 512 Model 1 Style E' serial number 1552 ignition coil, shower of sparks, ignition, garth rohdes