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Experiment with Transformer Principles and Induction using a primary and secondary coil. The outer coil is 2" tall and 1-1/4" in diameter. The inner coil is 2-1/4" tall and 3/4" in diameter
The removable steel core with handle is 3/8" in diameter and 3-1/4" tall. All coils are wrapped in 20-gauge magnet wire with insulated binding posts as connectors
Specifications