Patent ID: 8662058

Claim:
An electronic ignition system for an internal combustion engine of an early automobile, the electronic ignition system comprising in combination: a plurality of ignition coils, a source of electrical power, an electronic circuit board assembly fully imbedded within a commutator housing of a vintage automobile in place of original roller and mechanical electrical contacts; and electronic circuit board assembly further comprising at least two electrical contact terminals, each electrical contact terminal interposed in series circuit relation with the primary winding of an ignition coil to the source of electrical power to the internal combustion engine; and sensors responsive to the rotational position of a camshaft in the internal combustion engine, a first plurality of electronic switching circuits disposed in commutator housing, each electronic switching circuit actuated by said sensors closes then opens an electrical circuit including one said electrical contact terminal, commutator housing and internal combustion engine; and further comprising a second plurality of electronic switching circuits disposed in commutator housing, each electronic switching circuit actuated by said sensors opens then closes an electrical circuit including said electrical contact terminal, electronic circuit board assembly, commutator housing and internal combustion engine; and further comprising a plurality of resistive isolation means connected in series circuit relation with said electrical contact terminals, electronic circuit board assembly, commutator housing and internal combustion engine; and transient voltage suppression means connected at the junction of said resistive isolation means and electronic circuit board assembly in parallel circuit relation with commutator housing; and transient voltage suppression means connected in parallel circuit relation between said electrical contact terminals and commutator housing.