Original poster: "Dr. Resonance by way of Terry Fritz <teslalist-at-qwest-dot-net>" <resonance-at-jvlnet-dot-com> Anyone on the list have a reliable supplier of Amidon cores? Digi-Key doesn't stock them. I need a supplier that has a wide variety in stock. Please advise. Dr. Resonance Resonance Research Corporation E11870 Shadylane Rd. Baraboo WI 53913