1440 Primary and Secondary Coil

product Overview:

Used to study electromagnetic induction & transformer principles. The outer coil is 4-1/2" tall and 2-3/4" in diameter. The inner coil is 3-3/4" tall and 1-1/4" in diameter. The removable steel core with handle is 1/2" in diameter and 5-1/2" tall. All coils are wrapped with 20 gauge magnet wire with insulated binding posts as connectors.


We have 70 skillful operators, 5 machine mechanics and 31 quality inspectors, total annual output capacity in design can reach 130 millions sets.



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Our team has been and will continue to be committed to science education industry to provide quality products at competitive prices and good services to our clients all over the world.