Magnaflux Y-7 AC/DC Yoke - 230VMagnaflux Y 7 AC DC Electromagnetic Yoke 230V The Magnaflux Y 7 is a durable, high strength AC DC electromagnetic yoke designed for surface and sub surface magnetic particle inspection in the most demanding field and shop environments. Solid state controls allow the operator to switch between AC for surface indications and DC for sub surface indications making the Y 7 the most versatile single yoke in the Magnaflux lineup. Featuring sealed chemical