Sag Harbor Electronic Coil and Transformers Mfrs 1668 Sag Harbor Turnpike Sag Harbor Industries is one of the largest manufacturer and supplier of custom made coils, interpole coils, cable assembly, Transformers, toroids and many electronic products. Sag Harbor NY Electronic Coil and Transformers Mfrs Sag Harbor INdustries, Inc. www.sagharborind.com interpole coils electric coils interpole coils electric coils Business Reviews Sag Harbor INdustries, Inc. Testimonials