The output signal that is used to trigger magnetos differs from a conventional electronic ignition system. The Tach convertor is a compact device that converts the Pro-Mag's coil signal into a 12 volt square wave signal, so common tachometers designed for electronic ignitions can be used with the Pro-Mag. The convertor is less than three inches in length and its circuits are encased in epoxy for water and vibration resistance.
The energy from the generator is controlled with Field Effect Transistor (FET) technology, which is far superior to mags still using points as a trigger source. FETs are much more accurate, durable and capable of handling much more current This is why the Pro-Mag is capable of delivering full energy sparks throughout the entire rpm range of the engine, while conventional magnetos fall short of ful..
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