Rochester Electronic Coil and Transformers Mfrs 425 N State Road 25 We are a recognized leader in ignition coils for automotive, industrial, and marine applications,as well as custom windings for high performance applications. We also specialize in custom-wound transformers. We are the high voltage experts! Rochester IN Electronic Coil and Transformers Mfrs Marshall Electric www.marshall-electric.com Ignition coils ignition coils automotive transformers Ignition coils ignition coils automotive transformers Business Reviews Marshall Electric Testimonials