Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> Ferroresonant transformers do not work on turns ratio. Pri is 70 turns -at- 120 VAC and sec is 4,200 turns # 42 AWG. Dr. Resonance Resonance Research Corporation E11870 Shadylane Rd. Baraboo WI 53913